I had all sorts of ideas about track plans, but in the end it came down to what bits of track I had to use, and what bits of wood i had to mount them on.
Have knocked up the boards for the station area and they are currently drying, having had some kind of bitumen paint daubed all over them.

the layout is simply two Y points with the fat ends pointing at leach other, two sidings at one end, with the main line coming off the point at the other, and a side line going to a quarry or some such on the siding next to it. Does that make sense?
Rather than stick stuff into the ground I'm going to attach the end to the house, and the rest to extant fence posts.....will save me a lot of effort and will mean that it won't be a permanent feature so we can move house!
Anyway...more tomorrow when the paint has dried.