This is a 72 GMC. Same scenario as you describe. I bought it and proceeded to put 25k in it. It might bring 15.
Resale was not the point. I wanted it and the piece of mind knowing how it was reconditioned.
I really couldn't have afforded to spend the 15-20k it would taken to buy one in this shape. I did spend the money over the course of 2 years.