Several new jobs have come up for me regarding some welding of SS and/or aluminum nothing thicker than 3/16th (sink stands for boat docks). I have a Mig welder that I can put on a spoolgun but I was thinking about just buying a Tig welder to do the work. Would it be smarter to just buy the spoolgun and let it be, or spend the money on a Miller Syncrowave 200.