I know there are at least a couple of guys here that are up on the current offerings. My old unit seems to be about ready for burial. It has lost all consistency, runs like the invisible man has his hand on the amperage dial. Up, down, then flat on its' face. Leads and all internal connections are in good shape and tight. It's around 25 years old, 220V, 235 amps @ 65% duty. I would like to replace this unit with a new one of similar capacity. Any Miller or Lincoln recommendations? Would like to keep it under $1,500. Really only need the MIG process, have other machines for stick and TIG. Thanks for any suggestions.