Rails to Black Rock

I first made a quick mock up of the window to check the proportions. The photos are almost exactly to scale when I offer them up to the model...

The final result is a rather delicate affair, the roof provides a lot of the strength. I need to make the walls that surround the space in front of the cellar before I go much further. There is an enormous amount of detail in a very small space on this elevation. The iron railings could be interesting to make, I am wondering if some '00' etched fencing might be cut down for the purpose?