I just did my v8 swap on a 83 zx znd i sold my good running 6 cyl and trans for 1000.00 and bought a nice used goodwrench 350 and turbo 350 trans turn key for 1000.00 out of a 68 elcamino. Then JTR mounts and headers for 501.00, drive shaft cut 200.00 and jtr diff flange 60.00. I used my stock radiator and took the electric fan off the elcamino free. Used shifter traded for stuff and cable for shifter at pep boys 50.00 I also had to buy 2 radiator hoses ,and exhaust gaskets about 25.00. As for exhaust i spent 30.00 so far 2 90degree elbows and to 2ft pipe extensions that slide into the back of elbows. I had to trim them and weld them to fit and hammer in areas by shifter linkages on pipe. Also bolts to bolt of flanges to headers3/8 x1 1/2l bolts and matching nuts plus gaskets mine took 1 month to swap over fun but lots of hidden expenses little ones hope i helped. Buy a decent running car and ebay all the parts you don't need will help fund project,thats what i did!