i already have a mig and plasma from everlast and been very happy with them so i decided that i need to add a tig to the shop. i'm going to be building a chassis for a 68 camaro that i recently picked up for a project car and i don't know crap about tigging but would like to be able to do aluminum as well eventually. i was looking at the 185dv and the 200dv but like i said i don't know crap about tig. thickest material i can see me ever tigging is .25" in either steel or aluminum but this frame will probably be .125". what would y'all suggest?