Greg
The 7 car consist matches the reference to such a trip in the Colorado Railroad Museum's November 1961 Iron Horse News. The excursion, on October 15, 1961, was sponsored by the Intermountain Chapter of the NRHS from Denver to Golden,for the purpose of visiting the Museum that made two photo run-bys. There is a photo accompanying the article that does show the train from a distance and it would match the first two or three cars of the consist you list. However, no mention is made of the last car being CB&Q Business Car #96, which was donated to the Intermountain Chapter February 3, 1962.