Quoted from Pinphila:Who makes these now?
I know you contacted me but for others who read forum posts ... I have these available as bare (blank) or complete (assembled but without processor, game ROM or ASIC).
https://pinside.com/pinball/forum/topic/dumbass-test-and-reproduction-pcbs/page/3#post-5652544
WPC-89 CPU security is also supported (through a daughter board). If you want a single board that serves as a spare (backup) this board will serve that purpose.