I would suggest at least looking into swapable panels. There has been quite a bit of discussion here over the years. I prefer modular, but if you are going to farm all of the work out for that, it can get really expensive. Since you are doing a pedestal cab, it should be really easy to swap panels on.
For Player 1 and 2. I keep going back between 6 button Capcom layout, 7 (neo geo/capcom ) ,8 button, square like Capcom, arched for fingers, angled for better ergonomics, no idea.
If you like Neo Geo games, and are used to playing them with that 4 button layout, then go with the 7. Otherwise, go with 6. Make a couple of mockups on cardboard to see if you like the angled pattern better than straight. That is just personal preference.
Super Happ 8-way Mechanical Rotary for Player 1 and 2 – I heard this would look, play, and feel exactly like the Super Happ 8-ways, I worry that it will slip and rotate on the user during non rotary games. If I hate it, I could swap in regular 8-way Super Happs, I need to hear from people that went with these and use them for non rotary 8-way games that require a lot of movement.
Do you really like the rotary games? If they are not some of your favorites, don't worry about it. I have LS-30 sticks for my cab, and they cost me a lot of money, and are a pain to deal with. I am really not sure why I bothered as I never really played those games as a kid. I have never played them outside of testing those joysticks. I got caught up in the hype of what controllers I need to play everything, and never stopped to think if I actually wanted to play them.
Super Happ 8-Way for player 3 and 4.
Do you play mostly fighting games? If not, you may want to consider something like a wico 8-way. It feels better for just about everything except for fighting games. If you do like fighting games, you should try the Happ competition stick as well. I like it better than the super. The wicos and the happs have the same mouning holes, so these are relatively easy to change if you want to down the road.
4-way Sanwa Zippy joystick for 4-way games.
A 4-way leafswitch wico joystick is perfect for 4-way games. I really don't think you can find a better joystick. You will have to find a used, rebuilt, or NOS one, and it will cost more, but it is worth it.
Trackball Happ 3" with mounting plates. Haven’t decided if I should go lit or not.
There are two types of plates. One with holes for the bolts, and one with mounted studs so the top is smooth after install. They are not much different in price, so definitely go for the cleaner install. Lit is personal preference. I had lit buttons for a while, but got rid of them. If you like lights, go for it.
Spinner: TurboTwist 2 with the Enery Storage Cylinder, Blackhawk or TurboTwist High-Low. I know I probably won’t play DOT much, but given the opportunity to keep the same real-estate with more game support, I’m all for the extra expense if it all works well with everything spinner related. I’ll play Arkanoid, I love that game.
Try to test one of the push/pulls if you can first. If it doesn't feel as good for the games you know you want to play, then skip it. Otherwise, go for it.
Flight Stick / Tron Stick. Could I just use the player 1 8-way and button combination instead for Afterburner, tron, and anything else that requires this type of control?
You are just not going to be happy with this if you want to use it for multiple games. If you really like Tron, then go for it. Tron uses a different restrictor than any other game to make it harder to hit the diagonals (so you don't hit them during diagonals). If you have this set up right, it will make normal 8 way games a little harder to play. The stick used in Afterburner is analog, so it is not even going to work the way you want. It also has a long throw which really makes it feel like a flight stick. I don't think this is something you will ever be happy with even if you found a different analog stick for it. I use a Space Harrier joystick, which has a similar throw, but I wouldn't try a normal stick for afterburner.
PC requirements: Not sure if I should just put an I7 to future proof it, or which 3d card, Windows 10 64bit, 500GB SSD for bootup, 6TB software drive, how much memory.
You mentioned in your other thread that this is a once in a lifetime purchase. Might as well go big. The video card will help more with your frontend than in MAME, but I don't think you need anything more than whatever card is currently the best in the $150-$200 range. Memory is probably still cheap at 16GB, so I would probably go there. You probably don't need that much, but that seems to be the best spot for price/performance right now.
On/Off and Reset switch behind panel
I think this is a good idea, at least on/off
Dual Wired AimTrak with recoil and holsters. I love light gun games and so does my son. Time Crisis Series, House of the Dead, Operation Wolf, T2, anything and everything that uses a gun. I see they put out a large sensor bar for large panel displays.
My guess is that these will never be quite right, and you will spend a lot of time messing with them. I also think that it is the best option currently available. I had fun with mine when I first got them, but never bothered to hook them up on the new setup. Hopefully someday. I see these as the necessary evil for those of us who really like the gun games.
Integrated Dual USB on the front panel for light guns, and other accessories.
Are there Mame Dance Pad games, another game the family loves and I would consider purchasing 2 x Heavy Duty metal pads in the future, will it connect via the 2 front USB ports I want or does it have to hook up like an arcade controller and directly to the PC, I just want to consider what ports I would need on the front of the cabinet to future proof for this add-on, same would go for Guitar Hero type games, if they exist for Mame.
Speaker and sub woofer with audio controls integrated on front (sub volume, aux input, headphone, main volume all on one module): Maybe Cyber Acoustics 3062, I’ve seen it recommended, not sure.
Steering wheel: I would love to play 2 very different genres, Sprint series and Daytona. I see some people use Thurstmaster Ferrari GT, I think it comes with peddles. I saw the ones that go on a spinner but that won’t work in my config, I do love authentic arcade peddles Not sure how that and a wheel would integrate in to the Pedestal design, do you just lay the peddles it in front of the cabinet and that works well? Do you clamp steering wheel?
I would say I have more unique controllers than just about anyone here, and with that in mind, I am going to recommend not even trying the wheels. Unless you can do a swappable panel where you can do it right, it just isn't going to be very good. If driving games are something you feel you have to have (again, swappable panels would make it better), then integrate the pedal design into the cabinet. Here is mine. the pedals work for a 3 wheel setup, or for a center wheel with gas and brake for the analog steering games. I don't use the wheels often, but they are fun. The pedals don't get in the way when playing other games, so it is not a big deal to have them there all the time.

Can I program Hyperspin to show the user a visual of the buttons and functions and which to use per game?
You can do just about anything. There are a lot of us who are years into this, and are still not finished. Just a warning. lol
Gamepads: for Non Arcade games, maybe I can just use my old 360 wireless controllers, but it’s low on my list. I think I will need a transmitter.
If you put the USB ports on the front of the cab, you can use the platform specific (NES, SNS, etc) USB controllers for a more authentic feel. Otherwise, 360, PS4, or xb1 controllers all can work with varying setup requirements.
Thanks again
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