Also what about storage for rolling stock. A fiddle yard or storage sidings would come in handy. Would a station work on such a tight radius?, it would be hard to get large logos around without derailing. As junctionmad said by directional running is unusual and not prototypical, also the amount of point work to get to such a small MPD seems a bit of a waste. What if you put the station where the viaduct a girder bridge is and them at the start of the curve, this would allow a central platform which could facilitate longer trains.