Peter, there are many Groups on Yahoo relevant to BC Rail. Start with CanModelTrains, ask there, and they will steer you on to the BCR community....
The 1650 - 1653 are ex-NAR SD38-2s 401 - 404. The GPs are in a completely different number range.
Rail traffic moves east-west, not north-south. CN has invested considerable money in reacquiring the RailAmerica Canadian assets with an eye to...