Is the frame that damaged that when its pulled it cant be saved? Most collision shops that do frame work hate old cars, but you might find someone out there that will do it.
The reason I hate replacing frames after a pull is because they hold them in position and weld them back into shape. Its now straight within tolerances. If you decide to start drilling out spot welds and its not secured to a chassis jig, or fixture, odds are good its going to release and now its gonna be a S.O.B. to get back square.
If you have a front clip thats good from your donor car, consider replacing the full clip from the torsion bar crossmember forward. Its a lot of work, but it might make things easier in the long run