So you are making a route? And I don't think you understand what super elevated means. The track isn't off the ground, the tracks tilt on turns like this below.
Well, in America we call it a super elevated curve. --- Post updated --- Unfortunately I do not. I don't model.
It's pretty likely that if you're using Blender, you'll be making use of a curve deform modifier, which allows you to stretch a subdivided or copied mesh over a 3d bezier curve. The track itself won't require much in the line of customization, Chris Lucas has built his train to perfectly match real-world standard guage, so any model that fits the profile should do. Just PM me if you need one.
My profile gif vs your profile gif It's the gif mother load. --- Post updated --- Would it be the right scale for the train the op is making?
I'll just ask the guy who's making the nevada interstate, I think he has them, A download for the tracks would be nice.
@Occam's Razer did some amazing work on the locomotive, he improved the materials, he made the input_actions thing working and he made the tender detachable and he also did some other improvements. I edited my LUA script so now when you press "E" you get locomotive data.
It could be possible if you have someone with very, very good jBeaming experience. Which isn't me. But would be a nice thing though.