Something about your project struck a chord with me and I’ve worked out what it was! Two chords in fact. One was a model layout ...this may be up your street....http://yourmodelrailway.net/view_topic.php?id=6906&forum_id=21
The other was the prototype. I was a student in Edinburgh 30 years ago and remember that there were the remains of a few stations a little bit like your concept along the coast, such as Granton and North Leith. The old station hotel at Granton is still standing, and might inspire a background low-relief structure, and old pics of trains there show other intriguing maritime bits such as lighthouses (as below) that could add interest ....may be worth browsing Google..http://www.edinphoto.org.uk/0_edin_t/0_edinburgh_transport_railways_dy_granton_west_harbour_road_crossing_1024.htm
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