While roaming Fairbanks this summer I happened upon a jewel of a find in a yard off the end of Pegar Road.  An intact shuttle flat with all the railings and ramps. Walthers made a model of the base car needed for the project, but has not been available for years.  Listed as a 75' TOFC type F39 flat, a vigilant E-bay user can sometimes find one. According to Curt Fortenberry the original tencars were oxide red with yellow letters and he has decals available.