ReggieD
I just went through this with my '90. Had some curb rash on the passenger side wheels when I bought it plus the clear coat was really starting to show some age. Lots of scratch like marks etc.. Started looking for replacement (originals) rims with no luck. GM wanted $800 each for replacement. Found a place in VA/MD that restores originals. First they acid bath them, then make sure the rim is true and not bent, then rebuild and balance the rim. Last step is to repaint sections where they need paint (if originals were painted) and then clearcoat. When I picked the rims up, they had a protective sleeve around both rims as well as the entire wheel was wrapped for protection. They were absolutely beautiful and better than when GM put them on the car. Now they were balanced (no weights, trimmed) and perfectly true. And ORIGINAL EQUIPMENT!
I'm sure you could find someplace closer to you but if you can't, Im sure you could send yours to this same place. Oh, forgot to tell you, cost was $125. per wheel! If you want more info, email me and I'll give you the specifics (name, phone#) Hope that helps some. Best money I've spent keeping my sweetheart original.