Welcome to the repro world. I had to buy two to do my cab corner on my 70. The 2nd patch was worse, too! So I used the first and I had to accordion notch it to fit the curvature of the door.
On my โ51 1 ton, I had to use the section/pie cut addition Mark mentioned. My door line was way off too. Youโre going to get very well acquainted with your welder and grinders... ๐ Good luck. We are here to help!