The reason for the scale is that the primary view I think should be the trains. Then as you look further you see the Cat. system as a background structure like the track. The Cat. is a secondary feature.
It's hard to do because the cat. materials at scale are too slender to withstand the upward pressure from a pantograph while being tensioned laterally. Then the vertical rods need to stayed to maintain their verticality ( not really a word).
So to minimize the forces a Marklin cat. wire truss is use for the carrier and power wire truss and a Pittman pole with crossbuck is used for the vertical support of the wire truss.
