I could not even find orthographic schematics. And that's a little strange, because normally you can find schematics for anything like planes or cars or trains due to how many people are into that stuff.
this train is a rare one or something?
Try to find a plastic or metal modeling kit on amazon. order it and do photo 3d. Or find a modelers book and get the schematics (hobby stores often have those in stock of military and trains) often but not always, the modeling kits come with 3-4 views in ortho of the model. a little foot work may get you what you need if google fails... google often fails.