this is only my opinion . I would get a stick welder . learn the " fundamentals " of welding. try welding flat stock 1/4" laying it flat first. learn the value of knowing your heat range , knowing the direction of burn and puddle flow. ** actually watch an experienced welder do the welding process through a helmet** a few times and then, you can move to vertical and overhead. I have seen a lot of people weld beautiful beads that had no penetration and were worthless welds... do your self a favor and learn the Fundamentals first..... a mig will serve you well for sheet metal or light gauge metals.