You can look at my setup in More Pix in the Bolt Bucket in my signature below. I didnt go with power assist because it would require modifying my crossmember. I set it up with the proper prop valve and res valves and it all came out great. In the end, I have no modifications to the crossmember at all. It all fit just right.
The ONLY thing that may give you pause is that the floor hole is round, and not in the same place and you cant use it very well for filling your MC. Nothing a piece of tubing cant fix, just sayin. I found a nice square stainless door at Brothers, and modified my cab, so I can fill it fine. Most people dont go to all that trouble.