A short list of best intentions I would like to adhere to for the layout:

• Diorama presentation controlling the viewing angle
• Continuous backscene with curved corners
• Effective hidden lighting
• Lightweight rigid ply wood baseboard
• Analogue control - too many N Gauge models of the type in which I am interested would be difficult to chip
• Peco code 55 track
• Mechanical remote point operation
• Only large radius points
• Try to get the colour consistent across the diorama
• Use weathering effectively
• An effective fiddle yard to allow switching between trains of the length accommodated by the platforms & sidings

Large radius points are an unusual choice for a micro layout. The normal recommendation is to save space by using the shortest possible radius points however I prefer large radius so I will have to try to make it work. The track plan will therefore have to be considered carefully to meet this requirement. Perhaps it is over ambitious.

The fiddle yard will need to be cassette, traverser or a combination of the two. There is not enough space to accommodate points in the fiddle yard even if I made a compromise on radius off scene.