i would actually preffer not to buy a military vehicle to be honest. Although it looks very cool and you can be unique from other motorist, but most military vehicles themselves are heavily used by previous owners
I still think buying a conventional 4x4 car painted in camo is a better alternative to that. You can always make it fancy too by adding few extra bits to it including a gun turret and catapillar tracks if you can afford it
howabout buying a Hummer? The US military loves it because of its size and durability. Expensive though and its definately a gas guzzler, but u get leather seats and sat nav in it at least...