An interesting point in the process will be uploading it to Shapeways and seeing what it would cost!! I have designed it with bog-standard 'White Strong and Flexible' material in mind, which ought to keep costs down.

For some reason I have been putting it off... (!!!) but that needn't be the case, once the basic shape is roughly sketched out you could upload the shell and get a pretty close 'ballpark' cost. Any subsequent addition of details would be cancelled out by the hollowing out of windows etc..

I find it important to know before I get too far into a project. When I was planning my first 3DP model I uploaded a shelled out box (15 minutes work) to check the price before I committed hours to the project.

See here http://www.rmweb.co.uk/community/index.php?/topic/90905-shapeways-price-change/ for the full story, not a problem despite concerns over WSF costs.

It will cost between 40Euro-50Euro depending on how clever/brave I am with wall thicknesses etc. A bespoke scale station building for the price of a bargain bucket loco seems good! (Phew)