Polar Express Engine in HO Scale?

The movie Polar Express locomotive is a manipulated image of ex Pere Marquette Berkshire No. 1225 which is preserved in Michigan. (The actual loco number being 12/25 is just a pleasant coincidence. There was a very good article on the visual and audio recordings made of the actual loco in order to make the film in Trains magazine about a year ago.) The PM berks are typical Van Sweringen types - almost exact copies of the Nickel Plate berks - and are well represented by either the Proto 2000 model or the older Rivarossi model. However, both of the models are scale representations of the actual prototype, and they do not have the oversized cow catcher seen on the movie representation. Geezer