I have a guaranteed working Marvel Vs Capcom A+B CPS2 system. It is complete with Boards, jamma harness (already wired), usable marquee, joysticks, buttons, and test mode and volume switchplate, power supply, and I think an isolation transformer. I recently stripped my cabinet due to a bad monitor and this stuff is just collecting dust. Pics to follow if I can host them or email me for them. My ebay seller ID is DavidBriggs1984 and I have 100% feedback.
PM me with offers.