Having just done both sides of the cab, my experience is that the welded up inner to outer cowl piece is unusable without significant modification. I used the single, stamped version. It, too, needed some persuasion to make it usable. In the end, I used the old one as a template for what the new one should look like. Once I got the new one to look like a new version of the old, rusty one, it fit pretty well. My original one was too far gone to save for any use other than as a template. As far as the complete panels vs the partial panels, I found the complete panels to be better options for me and my skill level of welding. If I was more confident of butt welding, I might opt for the partial panels. With the complete panels, there was no butt welding, just plug welding.
