I have a converted Astron Belt cabinet. The cabinet had been previously converted to house Sega Choplifter.
I converted it to Jamma; the original connector still works. I also moved two of the buttons to allow for a four button layout.
I also had to replace the original power supply with a converted PC power supply.
I used to have an MVS hooked up to a commodore monitor. Wish I did not sell it. I had metal slug, pulstar, king of fighters 94, waku waku 7, samurai shodown 4, samurai shodown. That was 5 or 6 years ago.
I have a pretty sweet arcade setup in my basement.
Started with Battlezone almost 20 years ago... then added a Discs of Tron, and a Sarge two-player upright. Next came Xenophobe, Rampage World tour, and a Spyhunter upright. Most recently, I added a touchscreen-countertop, the Merit MegaTouch.
...Great basement for my kids' birthday parties when they were growing up.