That is exactly what I was thinking about using!

The seat being too low is a concern that I have. If you put the seats side-by-side their mounting bases are about the same. The first gen square mounting pedistal is pretty high. I will have to take some measurments over the weekend to see what I come up with. Once I figure everything out I will post up all the specs. It sure has been nice having a welder of my own now, it opens up so many possibilities when working on my projects.