A lot of times when good questions are asked, it seems we're trying to spend money that isn't ours. So bear with me. Even as a home garage type hobbiest, it is always worth stepping up to something like the Miller unit. You will never ever be sorry for that kind of choice. I know financial constraints restrict your purchase. Is there a way to beat the bushes and find one cheaper? Maybe borrow one from a buddy (Remember, don't piss him off)? If at all possible and knowing it is a tough thing to do, go with the best or most recommended unit. I have a hobart MIG that can be switched back and forth. I have a Craftsman stick that is an A/C (welds like a D/C). Miller TIG, A couple of Century MIG's. A portable Lincoln that has plasma and carbon arc capabilities. It's all good. Budgets can be restraining, but short-cuts cost you dearly in the end. Too many welders here in this site to varify that.Try to see about stepping up if you can. Hope this helps.