Willy, it sounds like my windshield opening was in better shape than yours, but my doors were NOT. I have pretty nice door gaps but it took me all winter just doing both doors, without chopping them. I had found a pair of doors a way down in British Columbia from a wrecked '35 panel truck. When I say 'wrecked' I'm not painting a full picture. The truck had been a roll over and the rest of the carcass had been hauled to the dump, in the forties or fifties, but the doors had been leaned up against a tree and forgotten. Nobody in their right mind would have taken them home, but I got a pretty good deal so I took them. I had to straighten up the window frame on the drivers door about 2 1/2" before I could test fit the door the first time.
You could weld some 'gas welding rod' along the gap where it's too wide and then grind it down smooth, or hose clamp a stick or smooth rod onto the side of your wire feed stinger and use that as a guide so you can just weld a bead right along the edge of the door.
Good luck.
