wondering if anyone has experience with one, and if they are worth it. Just looking to use it for body work (non-structural) to replace some rusted out panels like 20 gauge sheetmetal and such, but Ive only had experience with MIG/TIG with shielding gas. harbor freight has 2 little 90 amps for only 100 bucks each, and I don't feel like dropping at least a couple hundred on a 130+ amp if Im not gonna get a lot of use out of it.