I had an uncle who scratch built a train set, making it look so realistic that when he needed money he put the set in the "For Sale" section of the news paper, a movie company bought it and used it for a WWII B&W movie.
The train is supposed to be a German freight train, which runs over a bridge and gets blown up!!!!!!
My uncle made realist looking model trains, cars, trucks, ships, boats and planes, that would be right up there with the foreign imports of today!!!!!
Before, he passed, he worked for NASA, on small intricate parts for the Space Program, down in Florida.
Ralph