it was my understanding that the roof rack was more of a prototype on the 4runner you saw. if you buy the bull bar you don't get the side skids that protect the corners of the bumper.
i did speak with one of the guys in tech who gave me the impression that if you really wanted one you could get one. i would try calling ARB in Seattle and asking for a guy named buddy king or kris in tech. see if they can help you.
dan