I have an 06/07 airstream 158" interstate. The only thing lower than the sewar hose storage is a upside down T shaped skid that I some how managed to shear off driving off road in the Sierras a couple of weeks ago. A Sprinter based B may not be the best for off roading. I don't recall ever bottoming out my Ford and being younger I used to take it on some pretty rough roads. I like the cab to cabin convenience of a B but if I was going to do any serious driving off road I would opt for a truck and camper. Maybe the new 4x4 Sprinters will have more adequate clearances.
