Quick and dirty measurements of several points shown in your photos of the bare frame seem to show good alignment. The cab placement and radiator assembly may need adjustments?

Your workmanship looks to be excellent! Your documentation of the process is admirable as well. Unfortunately, although I took many photos of Sparky’s rise from the ashes I didn’t do a very good job keeping a daily or even a weekly log. Huge woulda, coulda, shoulda, on my part.