63 Dart Repair

RRR you might check with Clay and Sons just out of St Louis a ways. They have maybe the largest Mopar boneyard E of the Miss. I hate to think what it would be like to ship a back glass!!!? ha 635-257-4669 or 314-954-0815
I had one shipped from Texas to New York just on the US side of the Canadian Border and IIRC it was around $450 shipped (including glass). That was in a heavy wooden crate the seller made. Considering how hard they can be to find I thought that was fair. Hope you can find one.