Maybe someone could offer etched racks and panels to go with the MTL,Atlas and Trainworx flats, I think they would sell very well with the schemes that could be done! The partially enclosed racks make really awesome looking models. Heck maybe the racks could be made to be removable so people could use there flats for TOFC and Autos. Just a thought, there are a lot of subtle variations that could be represented as seen on the HO Accurail cars.