We've got a winner. It's actually 8 games and it works very well. I have to fine tune the BIOS still. Right now I have to write the files to the SIMM from the Menu and one by one, which is a PITA.I was assuming from the pic that the red boxes were for setting dip switches. For only 6 games that seems reasonable enough to me.
Found: Garegga, Bakraid, Gunnail, Hyper Duel
Wanted: PCBs - Batsugun, Rapid Hero, Air Gallet Arts/Pop/Manuals - Garegga, Bakraid
Vewlix CP Shipping Brackets (2x red sets preferred)