1966 Valiant interior panels....where to buy new?

What is the difference between Valiant and Barracuda. When I was in college a friend bought a 66 Barracuda. Shortly after he bought it someone went ripping through the parking lot with a VW and clipped the front end. He bought a Valiant parts car to get the fender, hood and door. His car had speaker holes cut in the door panels and the Valiant did not so we swapped those. We did not notice any difference then. Were they all different?