Im wanting to buy a portable welder for my truck and dont know what to buy. I will mostly be using it for pipeline and pipe fabrication. I was leaning towards the pipeliner200d but the 300amp output bugs me as I will need to burn 1/4 inch 7018 for capping pipe. I was looking at the 200d and 300d , and the Ranger 305 G (for price as this will be my first truck) as well as the Vantage 400 and miller pro 300. I could also be using to weld stainless tig with it as well. Size isnt a issue as I have a 1 ton dually truck. Any help would be great.