Just picked up a Lincoln Weld Pak 100 MIG for $50. I know it will probably be ok for 1/8" door flanges but will it be enough welder to weld critical parts like legs and firebox onto my 60 gallon 3/16" tank? And what would be my best chance as far as setup- wire size etc. I do have a gas bottle for it but will be welding outside so will want to use fluxcore.