I've been out today and bought some foam board, with a view to making a 7th scale model of the proposed layout. No pictures yet, but it's coming along nicely. I'd previously photo copied the templates in Barry Normans book and after cutting them out spent the afternoon shuffling them around. It's somehow very satisfying messing with these templates and has given me a much better idea of the radii and clearances involved. The paper representations of stock are great for working out how long loops