Planning the landscape, the hills, roads, village, station and so forth is what this layout really exists for. The completed project will be a railway line passing through a series of dioramas full of interest, the day to day life of English village from the 1950s or 60s. Perhaps some humour thrown in too.
Ideas include a small village, with its branch line station, perhaps depicting the village fête with bunting and a marching band. A church of course, a pub, and the local garage. Away from the village there should be a canal, maybe a cricket match on the common, and a busy farm. The country lane into the village comes down the hill from some hidden great metropolis we can only imagine.
So the next step is to try and see how many of those can be fitted into the very limited available space. This is a complicated design to draw, but doesn’t need to be exact at this stage. It can be adjusted as the building work gets under way. Here is the draft of what I hope it will look like….