Sweet rig! I'm sure you would already know but once you get used to the additional weight and bulk of a water cooled torch you will be spoiled for life. I would have loved to have used one welding cracks on jet engines but laying on your back and sometimes working through a mirror the gas cooled was the only way to go.
If you really want to mess with your mind try the mirror thing.......only a few of us welders could do it. I always said I had a backwards mind sometimes!