Fuzzy,
A fairing on the ol' roof rack would be great, but I don't think that Yakima sells the horizontal mounts for our cross bars anymore. I'm sure I might be able to fabricate something out of metal or plastic strapping if I had to. Are you going to go to Moab so I can get a closer look at your set up?
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless