I have an older Millermatic 200 circa 1983 vintage full time fan, I do mostly body work, auto repair, trailer and general fab work. Nothing over 1/4" and generally have always used .035 in an old GA15C gun. I Still have the original gun GA25c I think and it works although getting a bit rough. Looking for a lightweight gun for sheet metal and general as above. Want to try a Tweco gun I think. Recommendations? The welder itself is in good shape as has been basically sitting the last 20 years.