A good a mig welder would be a better option a Miller, Lincoln or Hobart gas run welder. That way you could do both thin and thick gage metal and I would suggest you use gas also like NOS or Argon. Instead of flux core wire you'll get a better weld and a nicer looking one at that. And with either one of those welders you could get a Tig hook up also for the fine and precise welding jobs. And you can run all electric tools off of them also.