John,
You might be better off trying this on the Classic Toy Trains forum - the people there have had much more experience with this sort of thing. The Model Railroader forums are mainly populated by those who model in N and HO scales.
Hope this helps,
tbdanny
The Location: Forests of the Pacific Northwest, OregonThe Year: 1948The Scale: On30The Blog: http://bvlcorr.tumblr.com