I'm in the process of modeling the Oyster Bay branch in O scale. I have the Mineola station area, the industrial area in Mineola known as "the hole", Locust Valley, and of course Oyster Bay. The track is down and ballasted, but I don't have much in the way of scenery yet. Attached is a copy of my track plan, and a picture of the OB yard. There is staging that is West of Mineola, and under the yard.