From the North Norfolk Railway, a rather nice station sign. If we have stations, we need signs and this is fairly easy one to model.
Those square posts are a lot easier to deal with then the GWR round version. The whole job could be done in plastic strip. How much detail you go to on the fancy bits would depend on your eyesight, dedication, and scale. I'd probably cheat a little in 4mm but we're only talking layers of microstrip, and this is one of those details the eye of any viewer will settle on.