Consider it fortunate that any pcbs of that game system have even been found at this time. Better cross fingers that any of the other needed pcbs can still be found including any paperwork manual/schematics for that type of unit.
>That means the game will be complete then in MAME
Supposing all of the pcbs and roms have been found and roms dumped in the future, SailorSat's type of skills will still be needed to get it running in MAME.