The reason I recommended those sites is I know there are a few people in utah that have a 3sgte in thier MR2, so if someone can work on one, they can work on the other
Does your trac hit 12 when boosting? Any smoke? All other maintenance taken care of?
Do you work on the car at all or will it all be done through a mechanic?
If you can do a compression test, I would almost consider starting there just to verify engine health.