1. Supra 5GME or 7MGE(not 7MGTE - don't want turbo)
Cool, fair amount of work, still Toy. More tools and time than bucks? Do it.
2. 4.3 Chevy
Ewww. Been done a lot before there were other options.
3. 5.0 Ford Fuelie out of mustang (89 or newer for mass air)
See #2 above. Don't like domestics.
4. 2.4 or 2.7 Taco motor
Now yer talkin'.
5. 3.4 Taco motor(hard swap starting with 4cyl)
The hard part ain't that hard with Off Road Solutions' kit or advice. This is for if you have both tools AND money though.

Guess I'm with Harry and Darin. So what else is new.