You have to study the Lionel model fairly closely to determine if its right for the road name (or how close it is). They made both the early Loewy and late simple cab window styles, but the car bodies are basically the same. There were many variations of the walkways, the hand rails and the radiator fan section of the roof. I think Lionel's model is the early car body (it may be an ATSF model, and possibly a Long Island). There are 3D parts to make them fixed pilot but it takes a bit of work to modify them as the pilots on the legacy models are different from the pilots on the TMCC models that the 3D parts appear to be patterned for. Biggest beef is the handrails, which lionel used GP9 style stanchions. If you 2 rail it, you'll need new handrails anyways, as whatever lionel used for railing wire is brittle as all get out and just snaps if you try and bend it.
I have one here that I've been working on 3RSing. The handrails are the biggest holdup.
