I spent the last two years modifying my neo geo 2-slot with mame. It runs only neo geo games, on the k7000 crt, and a custom attract mode layout I programmed. All that is left to make it completely working is sound and service buttons. Maybe my task afterwards could be hooking up an lcd in the marquee for a single mini marquee? I don’t know. The setup rocks though. Way better than my 161-in-1.