They are in the Lucasfilm Archives, huge warehouses somewhere. Perhaps at the Skywalker Ranch. Harrison donated one of the dozens of hats and one of the 48 jackets to the Smithsonian.
VP, my best answer would probably be in ebay auctions! Some guy from Colorado purchased a replica of Batman's suit for $500,000! And they sold Luke's X-Wing for at leat 10,000,000,000!
Plus, I *think* one of the Disney Indiana Jones attractions has a
truck from "The Last Crusade" on display for the line-up. Could be
a replica, though...
Yeah, Disney has the Raiders truck, LC Citroën and the LC tank. They also might have the nazi staff car from the Raiders desert chase, but I could be wrong.