[willy]

BS they are both good vehicles, the Road Master was owned by a friend of mine, used it as a small camper tow vehicle, one of the little Scotty's. We used to go hunting in it.
I would get that over the Cadi mostly because of the room in the rear to store stuff. Plus I beleive his had the seating in the rear which gave grown men room to stretch while traveling.
I do beleive the fuel estimates are a little inflated but they are both classic American vehicles. They both will get it done in my opinion. But remember that the posi rear is a limited slip and the clutches wear, if the vehicle has a lot of use (mileage) or towing then your performance at the slick ramp will be as a open diferential unless you have the rear rebuilt with a new clutch pack.