My work had a van almost exactly like that with a Chevy chassis and a 350 I think. We gave it to a vendor for a $300 "donation". He is going to make a hauler/party/sleeper van out of it for his jeeping and dune buggy outings.
'06 KTM 950S Adventure
'12 Ram 2500, Cummins, 6-speed auto, Laramie Longhorn, RamBox.