An interesting, if perhaps, ambitious plan. I work not far from there and pass it every day so if there's anything I can do to assist, don't hesitate to ask
Um... that's almost as long as my modelling space... so I'm guessing I won't be getting a model of that.
Perhaps I could make a T scale layout on the deck instead?
What size is a 'typical rake' of silver bullets, and what's the shortest train of them I could probably get away with running?
Would they be a 'block train' or might you get, say, 5 in a speedlink service?