Mark,
The provenance of the NdeM cars at the Huckleberry is known, and the only slight chance of an ex D&RGW car would have been the baggage RPO car, which was never restored as such (more below). Cars 40 and 42 do not have D&RGW outlines, they have the typical Mexican too big for the trucks outline. They are both ex UdeY. Car 100 is the UdeY "Magdalena", an ex office car, and car 102 is an ex Catskill Mt. plain roof car with center and side benches (third class).The RPO/Bag was used as a snack machine shed adjacent to the deot. It had a more or less D&RG outline, but any more info is not known. My only roster lists this car as CyZ. The car, which was a basket case, was dismantled, and the components and end underframes were used as the basis for the handicapped accessable coach that was built in the Huckleberry Shops that won a TRAIN restoration award several years ago. A search for an online photo of this car was unsucessful.
Steve