Here is the link to the NG shows.
Scroll down until you see the title "Rio Grande Steam Freights" and there is a full description there. Short answer is yes engines were relettered and we used D&RGW freight cars which the Friends of the C&TS had been working on for a few years. I was one of John's helpers for this extravaganza. With all the charters that have happened over the years since 1992, I still believe these 5 days were perhaps the best ever done on the C&TS. I know they were at the time(1992).
They were run after the last day of the regular season so we had the whole railroad to work with, and nice low fall lighting.
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www.gregschollvideo.com]
Greg