If this rig is going to get used as a truck I would advise against using only an electric fan. They don't pull enough air for truck duty regardless of what the catalogue says. I have one in addition to a 6-blade fan as shown on your military rig and I still see 230 deg.on a 95 degree day pulling a 7% grade in 3rd gear, even with a 4" radiator from a 2-ton.
