You can also check the MVPA (Military Vehicle Preservation Association) website. They have a classified ads section here: MVPA classifieds
. I think they are the same adds that are in the magazine that goes out to their members. This will give you an idea of what they are going for but there are still a lot of these vehicles sitting out on lots or in a barn somewhere that people are finding everyday with an owner willing to negotiate a worthwhile price. As a matter of fact, there is a company in town close to where I live that has a WWII era-looking 2 1/2 ton truck out front with a sign on it I keep meaning to stop and look at. Maybe today.
There are also military vehicle websites that have forums covering most vehicles you will likely find that you can look over and see which vehicle would meet your "mechanical abilities" (for lack of a better term) as all these vehicles need some form of constant maintenance, even if it is just a parade vehicle. Reading these forums will also demonstrate the support chain (knowledge and experience from other owners) that is available too. Steel Soldiers
is one website, there are other vehicle-specific websites out there too.
I have a 1954 M37, 3/4 ton Dodge of Korean War - Post VN era. Very easy to work on and parts are still plentiful.