If you are going to do body work, do yourself a favor and pick up a bottle of shielding gas. You will not like how that thing welds without it. Funny, I called around today to get some pricing. For $125 you can pick up a 75cf cylinder (filled) from Corp Brothers in Providence.
Another thing to watch out with that machine is the low duty cycle. Looks like its 20% whcih means you can weld 2 minutes out of 10. If you go over the duty cycle ofen you it will weld chitty and will also damage the machine.
I do need to get a gas bottle. Need to read me some instructions too! I'm going to be doing small things with it. Once I take a class and get a bit more experienced I'm sure I'll trade up. Will be good for tack welding and doing small patch panels on the 55.
Always wanted to buy another 1979 Z28 like I had in high school/college. Would like to get a rusty one and do some floors and quarters. A good car to screw up on as well