Hmmm.. There used to be an OEM Rock Rail thread with over 12 pages... but it's gone. Odd.
Anyway, I've got them. They bolt to the frame with 6 bolts per side, are tube steel, and cannot be used for a step. They work with KDSS. I would not trust them to take the weight of the vehicle against a rock (both the tubes and the mounting are not sufficient), but as a sacrificial "first impact" device, they fit my needs. Plus, they were like 200 bucks.