Construction must be as cheap as possible and be done in such a manner that the end product looks good and is practical to maintain. I have always dreamed of having an underground station. Setting will be 'somewhere in Germany'. The outer edges are the walls.
Blue line is edge of the upper benchwork.
Rectangle is the Faller Bonn Station. You have to trim and join small parts of the track in your head as I intend using flex track but have thrown this together as if I were using set track pieces. I like sitting there. A curtain will separate the layout from the rest of the room along the open edge of the 'E'. I will need to leave a small triangular hole in the top right corner to be able to gain access from below.