I was lucky enough to find a dolls house section at the local Hobbycraft and pick up these tiny, little hinges for the gates. I had always wanted the gates to open and close but didn't think I'd find hinges that small. It was rather tricky but again, well worth the effort. I think the gates are the main focus for the wall and all the extra time put into them will pay off in the long run.
The design for the Gatehouse was one from my imagination, but with the right little Roman touches it wouldn't look out of place. It had to be designed with figures in mind and therefore had to be a good mix of historical and practical, for the base sizes etc involved.