This bunch have the right idea! Norwich City was of course the MGNJR station in Norwich and by various routes gave connections to Cromer, Peterborough and many other places. This large network was shamefully closed in 1959, even before the cretin Beeching arrived on the scene, and was closed wholesale. I think the only remaining section run by the network is Sheringham to Cromer, but i may be wrong!
I suspect all or almost all of these lines will reopen in an energy-poor 21st century, the section from Norwich to Melton Constable and beyond for certain, giving more flexibility for passengers and freight.
Their facebook group is here.