Welding rig question

I've been through several welders. 110 volts are good; if you are just in your garage, a 220 mig can be plugged into dryer plug (with correct plug, $45).
With my 220v , 180 amp Hobart, gas, I can weld from 24 gauge to 3/8" (it says thicker, but I drag out the stick welder for that).
A bud has 2 Hobarts; Flux with infinity controls (I hate it, in fact, I gave him all my flux core wire, nasty). Hobart with gas, good; you just have to learn it, with sheetmetal; lower heat, stick, lower wire feed, raise wire feed, turn up heat, etc. Sheetmetal, .023, bigger metal, .030 or .035.
His infinity with gas would be perfect. And with a mig; it won't blow through trash, like a stick, the work needs to be ground down to clean metal.