Hi - new to this forum. I'm building a small N scale switching layout and would like to find a new N scale RS-3 with DCC, preferably Atlas Master Series. I can't seem to find one anywhere. The Atlas website doesn't show that model on their webpage and all the on-line hobby retailers only show RS-1 and RS-2's. What's up with the RS-3? If an Atlas model is not available is there another manufacturer that would have equivalent quality as the Atlas Master series? Thanks for any suggestions.