Hosskix,
Very nice rig! It looks like it has been well thought out. I had a similar rig with a Miller Bobcat. The biggest problem I had was that a couple of my buddies would come and get the welder and it would disapear for a week or so. I took it of the trailer and put it on a heavy duty cart, but they would just bring their trailers and load it up! These guys are like brothers and I couldn't tell them no, but it bothered the **** out of me. I wound up selling the Miller to buy a new Browning O/U shotgun. Ironically, my buddy bought a bigger Miller on a trailer, and has left his MIG welder and plasma cutter in my garage for the past couple of years. Good luck with your new toy, and keep posting pictures of your projects.
Shovel