Check with the big shops like Excellent Company, Cosmic Company, Coinop Express (do they ever have anything in stock?) and the like. The bigger Chinese shops, especially, can probably get their hands on the hardware... but, what IDChappy and Panda are saying is true. They've been mostly bought and converted to CMVS projects. Same thing happened with Ganryu thanks to it being cheap and having that necessary security chip converter people needed to make MVS to AES converters. It was bought to near extinction and now it's a pretty costly game. You have no idea how common that cart was back when it was new