67-9 cuda door repair questions

Heres the game plan, I have a 68-72 vent window assembly, I also have a 69-72 latch assembly. If it's a coupe without wide window lower opening trim, then weld up the trim holes. I also have the top inside sheetmetal of a 69 barracuda door including the linkage, and section of the door where the linkage mounts, and its cut below the upper door card stainless trim. If you trim it right, you can hide most of the seam under weatherstrip and the door card. Heres where the actual door modding comes in.

1. Weld up the vent flap on bottom of the door
2. Weld up the vent flap on the front of the door
3. Remove 67 upper inside of the door
4. Weld on the 69 upper inside of the door

A 69-72 dart 2 door inside door top sheetmetal is the same in this area and can be used for the door mod.