How about a deluxe version of the NKP Berkshire with a diffrerent number, like 779, but this time included a nice sound decoder and make the Mars light flash like it should. That would make an excellent model for the the 2010 xmas season. I plan to upgrade my NKP Berkshire I just ordered tonight to make the Mars light work correctly, but no sound for now. Putting an old Ibenlite circuit in the engine.