For general use in garage, eventually to paint '84. What size? what specs? Must run on 110, as 220 not available ingarage. Suggestions on good source to buy? Where to find used? What parts wear out over time/what to look for in used? My dad had a thirty gallon unit, torches, tools, floor jacks. Ma gave it all away when he died. What a waste. Didn't even give me a chance to pay her for them.