If the price is right....
Check out this super clean Unimog I ran across on Ebay. I have a feeling that given the dealership that is selling it that they will want an arm and a leg for it, and probably not know that much about it.
Worth taking a look at though if you are in the area.
http://cgi.ebay.com/ebaymotors/Mercedes-Benz-1973-Matte-Black-Unimog-Fresh-Motor-Extras-_W0QQcmdZViewItemQQhashZitem1e6334a0e9QQitemZ130513412329QQptZUSQ5fCarsQ5fTrucks#v4-40