I have a 85 4-runner with a chevy v8, sm465, 205. If you want cheap, a carb'd chevy v8 is easy to come by. Then go for a factory chevy setup in tranny and tcase. As in my case, that makes for a big headache with cooling, space issues, etc... I would say to look for a factory toyota setup. There are lots of folks pulling them for v-8's and bigger stuff. If you get a carb'd engine, it's easy. Stock toy is the way to go if you want to save $$. Go with it, save your $$, and in 2 years drop in a v-8. Good luck.