OK, some more updates.
Tried to tidy up the wiring inside the cabinet:


Fitted the control panel lockdown latches. Not very happy with these, they flip out horizontally in to the cabinet, and the right hand one gets too close to the player 2 buttons & wiring. It all works, but I have to be quite careful when putting the panel in place, and when taking it out. I may have to replace then, particularly if I can find something that stays more vertical when disengaging.



One of the wiring tasks I have left to do is to put some kind of quick connects on the wires that go from the control panel to the coin mech switch. I was wondering if you could use the latches to complete the circuit between wires going from one half of the latch to the coin mech switch, and the other half of the latch to the U360? Haven't seen anyone else try this...
Next was button lighting. I bought RGB Drive II lighting modules and an LED Wiz from groovygamegear so I could light up the buttons used by each game. I didn't think this through properly though, as the LED Wiz only has 32 outputs, and I need at least 36 for my 12 buttons. So I think my options are; buy a 2nd LED Wiz, replace the LED Wiz with a PAC LED 64, or wire some of the buttons without all 3 RGB connections. For now I've just wired 4 buttons per player (forgot to take photos of it finished):


Next I decided to try out some new marquee artwork. I'm going to call the cabinet Retro Echo - it echoes a previous time, is a smaller version of the original, and makes the sounds of yesteryear. And given it's a Nintendo based cab, I tried a donkey kong style to the marquee. I tried to do a mashup of the Double Donkey Kong style marquee (because I like the colours), with Donkey Kong and Mario images from the DK sideart (because I prefer the images of Mario in colour and DK holding Pauline).
I used the Jumpman font for the text, but had trouble with it. In Word, I used the text effects to put a double outline round the letters; but wherever there were two straight lines coming together in a point, the outline was corrupting. I ended up exporting this corrupted text into Paint, touching up the corrupted areas, then importing this text into Inkscape and using the trace function to convert it back into vector art. It ended up looking OK, but more work than I expected.

I quite like it, but the text isn't big enough and isn't centered. And now I've put it on the cabinet, I think I'll probably end up ditching Mario and DK - looks OK while I'm playing Donkey Kong, but I think I need a more generic marquee to go with all the other games. But still thinking about this.
Next step was to get my software up and running. Windows 10 installed, and latest Nvidia graphics drivers. I used the Nvidia utility to set a custom display mode that was rotated 90 degrees, and 1080x1080 resolution. I was concerned that there didn't seem to be a way to have this non-centered on the LCD, but luckily centred was in the perfect spot. I know I could have used retroarch to give more control over placement on the screen, but the great thing about having this done at the OS level, is that every app should use this resolution.
Then I installed the Ultimarc software for theU360s. I wasn't able to find the firmware on the Ultimarc site, so checked with Andy. Apparently newer U360s need different firmware from the old U360s, so good to check - he sent me the right ufw file.
I decided to use Attract Mode as my front end. I know a lot of people here like Mala, but it doesn't appear to have any active development any more; and I don't like Hyperspin for a cab. And Attract Mode has got plugins for U360s and LED Blinky, has a simple interface, and supports shaders - and I like that it has active development.
I put a set of MAME 0.161 files and ROMs on the cab, no CHDs (if I find a CHD game I really want, I'll copy it) and then cut the set down with MCM Plus to remove all preliminary drivers, mechanical, not working, mature, mahjong, utilities, casino, print club, tabletop, and foreign language quiz games. I've seen the arguments about the pros and cons of keeping everything on the cab or not, but I know I don't want to play these, and I want everything to fit on my SSD. Total space for these ROMs is 13GB.
Installed Autohotkey, and a simple script to pause mame when pressing my admin button, or exit back to Attract Mode if pressed for more than 3 seconds. I want to do more in this script, but haven't investigated yet. It would be good to be able to control volume with admin+ joy up/down, and reset the game (F3) if I hit the admin button 3 times in quick succession.
Then I converted the MAMEUI "Golden Age" game list into Attract Mode format, and did the same for the "BYOAC Top 100" list. I thought those would be a good starting point for cut down lists, before I get a chance to hand craft a list of my own favourites.
And then I moved the cabinet from the garage into the house:


And despite needing to sort the artwork, and fix a couple of wiring issues, am a proud owner of my very own arcade cabinet.