Did you see this one thats listed on the SMB Texas site as well?
http://www.sportsmobile.com/inventory-d ... ory_id=364
Its a 2wd, but has a very similar layout and options as the 4wd you originally posted. It has a 6.0 diesel with some more miles, but its also $33k less. You could easily add 4wd, wheels, tires, bumpers, and some bulletproofing for that much. It also has a removable third captains chair, an onboard diesel generator, and a diesel air heater (not sure if thats a furnace...?).
Figured I would post this since you could make it very close to the one you posted for less than the price of the silver one. You would even have the option of which 4wd system to go with.