OK, here is what passes as a track plan. The layout lives in an attic 11' x 9' and the two stations take up all the visible space. They are joined to a continuous run behind the backscene by a loop that feeds in to it, and both stations can directly access each other (Helmsdale only at one end, the other joins the main line) There are also some holding loops at one end of the layout that take sufficient stock for an operating session, which due to the relatively sparse traffic here is not excessive.
The hatched lines are the backscene and the running line and loops are solid. Some pics taken last week when the backscene was down for an overdue track cleaning session show the hidden tracks.
The loops behind Helmsdale - they have breaks in them so each loop can hold two trains.
In this view the points on the nearer track are the branch on the right and the two on the left are the platform ones at Helmsdale. The loop joins the main line behind once it curves to the other side of the room.
All point motors are on the surface and worked via wire in tube for actual blade switching - my back refuses to tolerate crawling under base boards much any more...
And lastly, two of the boards in place showing the access points to the hidden lines. Most stock shuffling is done at the bench end - small running repairs only here, main work is in another room.
Stock storage can be seen to an extent - locos on the end wall, with wagons, of which there are far too many, in a cabinet and cupboard under the layout, while coaches have a set of shelves under Thurso.