I don't know if it's still available,but many years ago MOSI sold cut-out 3d dioramas of the opening of Liverpool Street station.I have one back at my parents' house, unfortunately badly faded, but I've often thought it could be used to make an interesting model if the front-back distance was increased to allow room for at least one 00 track and maybe have my father's Triang Rocket shuttling back and forth!