Matthew may find it interesting to learn that when the W.W. & F. Ry. Museum acquired the current Sheepscot Section House from it's last owner (Crosby Hodgman) in Wiscasset, our museum arranged for the construction of a nearly identical replacement...so that we could have the original building dating from 1916.
If you look carefully up by the old Wiscasset Customs House, you will see the replacement shed and note its similarity to the Sheepscot section house.