**Some of the stuff I think I said was Ultimarc was actually from Groovy Game Gear. I’ve left links to everything below...
New cabinet art: https://arcadegraphix.com/
TurboTwist 2 Spinner: https://groovygamegear.com/webstore/
GoldLeaf soft touch buttons: https://www.ultimarc.com/goldleaf.html
Flight stick (can support the Tron grip): https://groovygamegear.com/webstore/i...
Tron joystick grip: https://groovygamegear.com/webstore/i...
UPDATE:
For making the proper connections, search for quick connect terminals. These should fit most microswitches:
https://www.adafruit.com/product/3838
Here's the sizes used by different arcade controls manufacturers:
Happ: 4.8 mm
ultimarc: 6.4 mm
sanwa/seimitsu: 2.8mm
crown/korea: 4.8mm