One possibility to consider is an aluminum torch for your MIG. If you're planning on only welding structural aluminum the one I have for my Miller 180 works like a charm and sure was a lot less expensive than another welder. However I do not know if Lincoln makes a similar torch and if you're planning on welding thinner < .125" aluminum TIG is essentially the only way to go.
That said I bought an AC/DC stick welder with plans to use it as a power supply for a TIG set-up.
BTW, Miller, Lincoln, Hobart, etc all make good equipment as long as one stays away from the real low end stuff.
That said I bought an AC/DC stick welder with plans to use it as a power supply for a TIG set-up.
BTW, Miller, Lincoln, Hobart, etc all make good equipment as long as one stays away from the real low end stuff.