Matt what about using some steel blocks, basically a body lift for the rops. Insted of passing a long bolt through the entire assembliey You would have plates welded to the ends with relief cuts for the bolts to pass through. You would have to use something like a gear wrench but that could be done pretty easy and the top plate is just tapped or welded bolts. Other thoght, hole in the top plate to drop the bolts through so the opening does not have to be that large.
Ok one more just a simple "X" welded to two plates to give you your height, 4" x 3/8 flat bar would work. Easily removable for factory service since K would whine about it.
And remember lifting or modifying any vehicle will cause it to be more top heavy and can become unstable even at low speeds. /forums/images/graemlins/grin.gif
Junkman could not agree more on the ROPS overstatement