A miller 180 would be the smallest welder I'd be looking at. It can also be outfitted with a spool gun Which if you have the funds is worth it, as said you can weld alum.With it. I use mine for stainless and aluminum I have a miller 252 with the spool gun and a 250 synhrowave tig. I use the snot out of them all. Only down side is my bottle rent is more than I'd like.
