@ChanceKJ, that is some good advice along with some helpful information, thank you. I am following your Flynn wants and needs style of organizing for my wants and needs.
When you say (in reference to the switches lighting up for which is needed for each game), that "this can be quite expensive, and it can take a long time and effort". How expensive are you talking? It seems like the buttons are not much more? And the LED output card/controller to drive them isn't too bad for pacdrive or pacled64. Also, do you have to program the lights for each game or are there predone '.ini' files (for lack of better name)? Do up use LEDBlinky for this other?
For buttons amounts, i can build and rebuild the control panel or layouts over and over if need be (have access to all the plywood/wood and tools carpenter shop at work also access to sheet metal shop with aluminum, stainless, and galvanized sheet metal). Also CP will be easily removable so I can swap out to a 2 player CP when needed.
Good info on buttons and I like that you have used LED buttons so you have some experience other them. Personally, I am mot worried to much. If I had gun to head, I would say not chrome rimmed or clear but would go with opaque. With that said clear would prob be fine also. Will have to research soft or hard light. I don't want to be blinded or focus taken away from screen with a too bright of light.
For button style, just the standard concave style like most 80s games. I like that kind of feel, but if they aren't exactly like it, no biggie (from what I have seen, they are not very pricey).
I am not really looking for any other style of games then mame/arcade ones. Not looking for emulators on it. If there were to emulators, it would be NES and 2600. If I want to play all the other emulators including those, I will just boot up modded xbox with xbmc and play it that way, as the controller is better for it. I want this bartop to be what it is, a mame coin op cabinet.
(Trackball is a yes along with spinner. Even if I play only one game with each). I will also research more on joysticks like you said.
@PL1, great idea on router out for mounting plate. Funny thing is that I think I was using the template for u-trak but said 2 1/4". I thought it was 2 1/4" when laying out CP for 1 player.
I haven't seen this is I will ask now, what is a good amount of space for hands to rest on below the buttons and joystick?