If i could learn to tig weld, i would be set.
Watched a video of a guy welding panels onto a ford truck with stick welder.
Used to gas weld, that was the go to 30 years ago.
My new mig still needs some figuring out.
it's funny. My dad a lot of TIG welding at the shop including batches of thin sheet aluminum boxes for Hudson Tool & Die. .020" or so.
But that was always corner seams that I recall, and the boxes were small, 2 to4" a side. He never liked to use it for any large sheets like on cars or trucks. Always said it was 'too hot', put too much heat into the sheet metal.