hmmm... I have a Hobart 187, which has served me really well and can really put together some thick stuff. The problem is that it does not have the controller for the Spool Gun Control box, which is expensive. The version that replaced the 187 came with a built in controller and sometimes it comes with the spool gun bundled with it. If I had thought at the time that I would want to do all of this extra stuff, I'd have looked into it!
Maybe a TIG is the perfect supplement to my current set up...decisions decisions...