The one thing I always loved about model railroading was the ability to buy any engine and give it a new livery (colors and logos) to become the stars on my N and S Railroad without fear of a visiting expert chiding me about miniscule details that make up his rail world, not mine.
Manufacturers Agree
You will find a growing trend among model railroad equipment manufacturers to get beyond the confines of prototypical design.But it is your space, use it as you see fit.
Future articles will detail and scenic the Neverwas and Seldomused.