Thanks, Jon. It’s easier said then done. I’ve acquired most of the set piecemeal in just such a way. I have the two “A” units, a baggage car, coach, sleeper, and tavern lounge from the ‘Bay. Those sets were broken up by various sellers, but I can’t find the elusive “B” unit, which has the RailSounds exclusive to the set. Somewhere, there must be a “B” unit!