Any idea who imported it? That might be a clue as to "reality". If it is someone like the late Pat O'Boyle (Pacific Limited), it is probably accurate for something. If it doesn't have a prototype, what did the builder use for plans? Is there a generic set/sets of plans for various cars that builders use? I'm sure the builders have a "file" of plans for things they have built. At least it doesn't have a giraffe sticking it's head out of the roof.
The Hobbyhill tank cars of several years back were said to have no prototype. Same question: what did the builder use to construct them?
Simon