Howdy, been working on it myself in Nscale. A few Bachmann old days passenger cars embellished with gold paint ,craft store gold dudads and cut out window on a baggage combine car. I take some freedon from exact copying but it actually looks reasonable. Even a tiny coffin inside made from a couple of modified crates. All painted gloss black. With Nscale you need a magnifying glass to see anything any way. I may even do some research to see if I can get closer to the real thing. A few left over passenger cars and imagination. Thats the fun of model railroading.