I have rebuilt PCBs for Galaga. I had originally purchased them from mikesarcade.com (a reputable dealer of arcade machines and parts) but I traded away my cabinet for another project before these boards showed up. They've been floating around the house for a while, and I have no intention on starting another Galaga project. I have the paperwork from mikesarcade.
I paid $325 for them, I want $200. I'd take this deal and run with it.