I've picked the name Danderhall as its the vague location of the new house but is in the area of Millerhill, which had a small goods and passenger station and Shawfair which has a modern station serving the borders line (also a search didn't turn up anyone else using it). That all said it is a totally fictional piece of work and is more to give something to fiddle with.

The track plan shows what will hopefully form a little station with engine shed and some ability to operate rather short trains. with a small fiddle yard built to the left hand side
Ideally if it works well it can then be dropped into a bigger layout without too much fuss.