As far as you mig check out the hobart 220mvp. it is dual voltage, 110 and 220. already set up for aluminum spool gun. the hobart 140 is excellent but good to 1/8 or 1/4 with beviing, as far as running on 220v the mvp can get 3/8" in single pass.
I have a husky 5hp 26 gallon compressor. home depot sells the 60 gallon, i would go with the 60 gallon. Oiless can be loud vs a traditional
oil bath compressor. I prefer the traditional style and since it 60 gallon you won't be moving it and weight is not an issue.
QUOTE=bwcobra15;1338014]I do not have the 240v line yet - I have plenty of room in my breaker box to expand though, and I will already be adding another 240v outlet for MIG welder.[/quote]