Welder suggestions

I agree with dgc333, for sheet metal use a shielded gas. Flux will be very messy and possible damage the body.

I have a Lincoln Weld Pak 3200HD (120V) and it works great. You can get them at Lowes, Home Depot, welding supply stores, and Harbor Freight. Check Craigslist for them too. I got mine there for half the price...