Mixed Year Dart/Duster Door question

They fit fine, but they are '72 doors and I'm looking to go back to the '75 look on the inside. Personal preference, plus, it's what I had in my first Dart back in the day and I want what's familiar. You know how it is. :)
OK, transporting a car to Florence, SC later this week and could check what year doors I have, but I know I don't have the plastic upper door frame pieces...