Yeah, black marble is great, the coolest contact paper ever

Thanks for welcoming me to the arcade family. But i have a lot to learn. I am more of a pinball geek, having 6 pinball machines at home (TAF, STTNG, WC94, RS, HS2, FP2).
Maybe I rushed building this machine, but I wanted to play so badly. I learnt a lot in the process and it was great fun. My next project is to convert the attached Sega Virtua Fighter 3 Team battle cabinet to Mame -> J-pac -> Jamma. Anyone having tips of how to rewire the Sega Model 3 wiring to Jamma without damaging the original wiring?