[YTNUKLR]

I bet your engine probably looks bad, but you can't really know unless you take it apart and see. You might get lucky. If you don't and your engine is in really horrible shape, I'd recommend looking for a good "core" engine (something in OK, typical used shape) to rebuild. I think buying used engines from dismantlers can be pretty dicey...head studs break, mileage (do you know it??), dishonesty, other crappy rebuilds, etc. A rebuild is expensive but when you're done it's a known quantity, and there is a lot of peace of mind in that.