I grew up in Helena. My family still lives up there and boating on Canyon Ferry or Lakeside was always great. Just be lucky the weather was nice enough to get some skiing in. We had 6 inches of snow one year on the fourth of July.
Not sure what you plan on welding or how heavy duty you need. I'm a miller fan myself. I have a trailblazer at home (told the wife we needed a generator, just didn't tell her it was attatched to a welder). We also use them at work, but if you are looking for something small Miller has a...