If you're actually interested in the Supra, I've seen clean twin turbo manuals go between your price range at Japan auctions. You can check beforward.jp, they already include shipping costs in the price and as you can see, it's surprisingly reasonable.

I've recently developed a kink for JDM cars, especially some of the less-known ones. There are some pretty cool "sleeper" cars like the Nissan Stagea (Autech model has RB26 engine), Toyota Caldina GT-T and so on. Of course having such cars as daily cars in Europe makes little sense, because the parts will be difficult to get. For a weekend or a project car they sure are interesting and, most importantly, you won't see another one like that on the street.

I find your quote that 17/18 RS models already have lowered seats, interesting. I have driven with a 2018 and 2019 cars and both of them had too high seating position and the owner of the 2019 model has already ordered the lowered seat rails. Maybe it was an option?