Hi John.
I've never seen Peter Denny's Buckingham Great Central but I have a couple of books on the layout.
I'm not basing the layout on anything real, just came up with the idea in my head & refined a design until I though it looked ok to me. I enjoy the building of a layout more than actually operating it, although i do like to s trains go round. I have another larger layout in another room which is largely finished except for some detailing which I will get around to some other time.
Speaking of Peter Denny, here are some photos of a station building I made from scratch over fifty years ago when i was much younger I based it on a plan i saw in Railway Modeller at the time. It was in the late sixties or early 1970's.
Nowadays everyone uses plastic card. back then I used timber covered in brick paper with the windows & doors painted & made from plastic strip I cut from some packaging I think ?
I know it has nothing to do with Mill Road but someone might be interested.
Tony.