67 barracuda notch back window rust repair

Im going to send the vinyl top to hell and start fixing the rust very soon (as seen in the first post). I was wondering if anyone knows if the notch back barracuda shares the same rear window lower corner curve dimensions with another mopar car? Id like to source a patch from another car junk yard or aftermarket (if they are even out there) if I could rather than try to make one my self. thoughts and time are appreciated.