I'll also add that I try to buy airforce trucks whenever possible. They are much better taken care of. The cabs aren't sat on, hoods not broke in the middle. The have a different shade of OD. Every one I've had was runway clean underneath too. Marine corps next, less abuse, good cabs. Army are usually beat up, guys sit on the cab with their feet on the hood, and higher mileage too.
If your buying the supposed low mileage example, and the seat is all ripped up you can bet the odometer is rolled over, or replaced. You will find the dash is always cracked unless it never saw the sun. There is a M1009 on CL in my area that says it has 11k with rough interior and the rare 8 lug axles. Let the buyer beware as they say. It is on Portland CL now. Take a look. There is a cheaper one that looks better too. If it still has the floor mat make sure you check underneath. That is another thing about AF models, the floor is always coated/rustproofed, by rust still attacks it, so always check. I used to buy CUCV's reasonable but not anymore. They command more $ now than ever because there is no surplus market. If you buy one drive it, take care of it and you should sell it for a profit or at least break even, a few years down the road. The danger is you may not be able to sell, because your too attached to it. It's hard to say but it's either you become attached to it or it becomes a part of you.