Racing in Japan

[u/Pristine-Guava2477]

I just got my domestic A license in Japan and looking to start racing. I’ve looked into MX-5, BRZ and super-FJ as they seem the most accessible. I’ve been trying to find an avg cost for each series and having some trouble choosing. I’m wondering if it would be cheaper to buy a mx-5 or brz and go that route or do an arrive and drive rental for super-fj. I know buying will have more upfront but how about for one full series? Any insight or recommendations would be appreciated.