How about welding up one that has been 'egged out' and re-bush?
Charles, have you successfully had these hinges welded up and re-bushed? I have several early '65-67 hinges, and I assumed that once the metal was oblong past a certain point (like what an oversized bushing could repair), that the hinges were junk since they're cast iron. I've always heard that cast iron can be a nightmare to weld.
If you're talking about the stamped steel hinges--and I didn't see a model year listed in the original post--disregard this.
Edit: Just saw where the original poster's name had 1970 in it. Disregard my post (though I am curious as to whether anyone has ever successfully welded a cast iron hinge).