Needed a welder last fall for a project. Ran into this old lincweld 180 with 50'+ leads for a steal. Since im now done with it decided to "restore" it. Any ideas where I could get the knob on front? Stupid question maybe but is there a issue with welding one of the legs back on using the welder im welding on? Itappears this isn't exactly a rare or valuable model. I believe it could end up a very unique color.