I am a member of the American Airpower Museum here on Long Island. In addition to our WWII aircraft collection we now have some operating heavy iron. A Britishicon "Ferret" scout car, An American M-8 "Greyhound", an M-20 , which is a Greyhound with less armamant, and our most recent aquisition, a WWII Sherman. The Sherman came from Belgiumicon. Paperwork and approvals needed from State Dept, Dept of Defense, Alcohol Treasury and Firearms, Dept of Agriculture ( Belgian dirt in treads ), negotiation with dockworkers union when it arrived in Port as they are only one who take any cargo off a ship but they could not lift it off as lift lugs were not certified as sound enough to be lifted from. It had to be driven off so they conceded and allowed our people to drive it off and out of the ship. A long ardous process but we got our Sherman. Probably slightly less complicated if you buy one domestically.