I would do a camo job, something unique that you come up with yourself. Like a combination of tan and OD green. With so many vehicles used in GWOT being painted tan, it wont matter which color you use - either could be inteperted as a military vehicle.
I saw a Toy around the Bay a couple of years back. It looked like they had sprayed it green, and then done up a paint pattern of swamp grass, and then laid down tan on top of that. Unique, non-military pattern, that looked really cool.