Valiant signet -65 frame

I don't know about different windshield frames, but the front and back of the frames are boxed-in on the corners and there are different door catches on the doors, like my 65 Dart has. I would think that if you put decent frame connectors under it that you would be fine, in the frame department. I hope others chime in because I am not expert. Are the windshields the same from a regular 65 Valiant and a convertible???