I have just spoke to a dealer in Korea and they will try source some motherboards for me with the cheapest game on the system: Dongul. I’ll let you know @ekorz — I’m looking for a backup mobo for myself.
Multis: CPS-1, CPS-2, CPS-3, F3, S16, ST-V, MVS, M72, G-Net, Naomi, TTX2
PVMs: 2043MD, 20M2MDA, 20L2MDDevices: Sentinel Gold / Ultracade uVC / JAMMAizer! / XRGB-mini
PCBs: VAPS Profile