HELPPPP...Looking for good rear window frames

Does anyone have a good set of rear window frames? I sent my rear window frames to be blasted and got them back full of holes:012:. I was going to try to weld them back together, but now realize they are too far gone. New ones are on the shelf in CA. but are a bit expensive so I thought I would try looking for "good used" ones. Thanks! Jack in MA.