dude, the early 300zx that look like a 280zx have 4stud same as ke30, also r31 i meannt the one that looks like a pintara, they have 4stud too. and theres not that many components too it, and you dont have to shorten struts (which is a bitch to do)
but yeah i understand some people are religious and all. i just think if it works then why be picky. most early 70's manufacturers used tokico struts and sumitomo brake calipers anyway!