Old door question, diffs between 69-71 and 72

[swyfor5]

Searched and looked and still am not sure here. Thought that 67-71 doors were the same, only made a change in 72. The K5 doors from 69-71 are the same, a change in 72. From what I can tell the difference is the dimple for the screw below the vent window which makes the door stouter.Also the inner door panels are different on the 72, with the window and door handle mounting points being longer to go through the 72 style panels. Got my K5 out and going over it saw this. Just wondering what I need for inner door panels and etc.