Parts are getting easier to source for the kei cars. But still, having to parse through non-English manuals for P/Ns and repair manuals is still a huge PITA. Not to mention turning on the windshield wipers every time you change lanes... It's just my lowly opinion, but the Miata B6/BP isn't a really awesome motor to begin with. Sure, there's a ton of support for it, but it's a boring motor. If you're wanting to get into wrenching, and if it was my money (and, if i had a shop space), I'd pick up a blown motor NA and K20 swap it. Then start pinching pennies for a 15psi turbo kit and shoot for 250-275 horse, super reliable. That chassis gets kinda stupid with more than 250 horse. I'm just talking out my ass tho, but that'd be a fun build and there's about a million other people that've done K20 swap Miatas, so everything's all figured out.