Check your max G.V.W. that van weighs arround 8,500 lbs empty. After you add a bulkhead, build a DOT LEGAL sleeper 300 lbs, your gear, supplies, equipment 500 lbs, a driver 250 to 300 lbs, and dont forget a full tank of fuel at 35 galllons of fuel annother 350 or so lbs.
8,500+ 300+ 500+...