Quote:

Borrow, buy or rent a MIG.



Yeah, that's my gut feeling, I was just hoping that if someone has successfully done 19-20 gauge sheetmetal bodywork with TIG, it would tell me that it is at least possible...in theory.

I really don't feel like spending money on a MIG welder, because, for the most part, I think they weld like crap (no penetration, splatter, slop, toothpaste welds, etc), but in this case, that's is what you need! We have a 200A MIG at my work. In fact, I was the one that bought it, because I knew everyone could pick it up and run with it.