Big fan. When I was stationed in Maryland for the Army, I used to go up there almost once a month. I'd ride the train and hit the museum. I never tired of it.
In October of 2015, my wife and I went to NYC with some friends, and one day we went out there. My wife, who has no interest in trains, actually liked the place. I even saw her taking her own train photos in the museum!
you need to model that in O scale
It sure wouldn't be tough. Single track main line with passing only possible at each end and at Groff's.
Operation sessions would get awfully boring, though.