Is his Edsel Amblewagon black by some chance? As for the window, can you get some dimensions form the opening? That is the best chance of figuring out what will work. You will need hight at the extreme right or left end, hight at the middle, and length at the top and bottom. Also, is the glass clear or tinted, not that it will make much of a difference, because you kind of have to take what you can find.