Just saw this now after havuing gone thru this myself I would change the outer cowl, inner to outer cowl and the inner kick plate and i will bet part of your rocker panel is rusted away. Now what I did was just cut a section of my rocker panel and welded in a section as most of my rocker about 4 inches back from the A pilar was still good. Yes lots of bracing and weld some braces across your door , also what I did was put the cab on a dolley and bolted down from the cab mounting holes. This keeps it flat as if it was on the frame. You wont be able to repace those parts while cab is mounted to the frame.

https://drive.google.com/file/d/1teFtXxksjBuBp14cHmwVuzCBA-fob3rs/view?usp=sharing

https://drive.google.com/file/d/1gLujzDNMqScLWq5cOVc0At8Jo5xW33bC/view?usp=sharing
https://drive.google.com/file/d/1xSSdXQYUOJJqxBXec-WCHkbpa4DlzYMh/view?usp=sharing

Last edited by The Shop Teacher; 10/31/2022 4:27 PM.