I can:

1) have it rebuilt with parts
2) buy a factory rebuilt
3) buy an aftermarket rebuilt
4) buy a used motor.

1) seems too much like a crapshoot. 4) is right out.
2) is probably too expensive. 3) seems like the best answer. I've seen several companies that advertise rebuilds. One has 3.8 liter stroker (bav engine exchange) and one has 3.7 and 3.9 liter strokers (metric mechanic). Anyone have any experience with any of these motors in terms of strength, hp, reliability, smog, etc.?

thanks...