You're welcome Joe!
Is it a model of a real station or inspired by a real one?
Looking carefully at this station, I think it's not too hard to build in O scale: almost only square shapes, you can use windows of brands (Tichy, Grantline), columns can be made in 3D, etc....
Obviously, it would be better to have drawings, dimensions and a lot of photos!
I already begun modelling a french station which is 2,5 m long, for the moment in abeyance (see my thread "Big Station" one year ago).
jpv in France