I think you are in the wrong place. I would say fix fix fix. I am a fox body guy myself so... I am restoring/modifying/customizing my 1991 convertible; check out my site. Are you doing the work yourself? From your list I would say that the radiator and the tires would be the most expensive fixes. Depending on the tires, of course. However, that is to say that the engine and the transmission are sound. The wiring harness doesn't count. You have to buy one of those. Without it, no car no run. It should be too expensive, though. Maybe less than 100 bones. Try a junk yard or a pick n pull if you have one close. Endstate,if the engine and transmission are good, I say go for it!