I bought a switcher from RiddledTV on klov. I can add up to 8 boards to it. It used the original harness with adapters for each board. I sure he still can help you if are interested.
https://forums.arcade-museum.com/members/riddledtv.27128/
Actually I could make that $5 cheaper if I swapped a...
Just pickup a cabinet that's not worth saving. I have a complete Pacman for part out. Let me know what you need and make a fair offer. Please add shipping (US only) and fees (pay pal). I'll work with someone who wants it all.
1. PCB (assume not working) (Sold/Shipped)
2. Harness (Sold/Shipped)...