It’s not unprecedented, but I’ve seen a dash a-board with a goldstar branded z80. It doesn’t look as bad as some of the hacked together audio circuits that I’ve seen, but the z80 is odd. I found this blog that showed a long board with a goldstar, so who knows?
https://wiki.arcadeotaku.com/w/CPS1_Repair_Logs
https://wiki.arcadeotaku.com/w/CPS1_Repair_Logs
