Shoot, if you have a '95 blower, your a step ahead. You just need the Maganport then. Anyway, obviously $350 and $1200 is quite bit of difference. At 45K, your blower should be just fine. I don't think a rebuild would be real neccasary. However, if you wanted the piece of mind, that it ain't going to hurt anything. MP has the port/rebuild package for $600. If you can go without your car for 2-3 weeks, I'd say just send your's in and save the money. In fact, I'm not even sure they have a No Wait option on the Maganport for the '94-'95's. Would have to check that out. As far as polished, that is just a personal preference. One that you might want to consider is also getting the Inlet Plenum. IT'S FREAKING HUGE!!! Maybe you could put the $300 cost of polishing the blower towards the inlet. Just a thought?
Thomas