Ok, it's not a van, but it IS a 4wd, diesel pickup truck Ambulance converted for SWAT use, w/ ~11k miles. Current bid is at $2k.
https://www.govdeals.com/index.cfm?fa=Main.Item&itemid=764&acctid=393
"1995 Chevrolet C/K 3500 Reg. Cab 4WD CHASSIS AND CAB, 6.5L V8 OHV 16V TURBO DIESEL. LOW MILES!!! 10,846 MILES!!! This is an excellent vehicle with low miles obtained through the military surplus program by the Manchester Police Department. This was an ambulance that has been converted to a SWAT command post. All decals have been removed. This is an emergency vehicle. Installed equipment include: 360 degree coverage strobes (blue lenses to be removed if not purchased by law enforcement) Whelen siren with speakers, center console with LED light indicator panel. The box is temp controlled cold / heat. Exhaust fan, internal fan, power inverter. Grill has cover and snaps for cold weather. This is a 4WD vehicle and all transmission and 4WD equipment works. AC blows cold. Wheels have chrome simulators installed. Very low miles on this vehicle. Has been maintenance while in service with MPD every 300 miles."
View attachment 373502