front door panels 65 Dart 2 door hdtp

Avispa said
From what I understand, 63/64/65/66 are the same shape, just different patterns, Barracuda's of the same year will work also, or so I'm told.

Your understanding that 63-66 2 door door panels are all the same shape is correct. So therefore 65 Barracuda/Valiant Signets will work, although they have a different pattern than the Dart.