I am going to give you some advice and trust me, I never give advice here. So listen carefully, instead of spending weeks and months on finding parts and labour. Why not wait 8 weeks and then buy yourself a 180sx?
It’d definitely be mostly rust free, have an SR or CA in it already, it’d be RHD, and most of the bushings will be good too.
If you make 1400 a week, you can have it in a few weeks.