I'm not sure that is such a great design for hanging 3 stories off the ground. SF's Cable Cars. Just a suggestion, have a small locomotive car at the front that grabs the cable and pulls the train that way rather than keeping passengers feet dangling near and edge. Personally I would want to ride in the front, even if the views are spectacular. The coach could have forward facing in the front compartment and rail and poles for standees. The drive mechanism should only be in one car to save on space, money and labor to operate the train. If the system routes are relatively level, there should be no need for massive drips like the cable cars in SF need to go up the steep hills. The cable cars are 9,000 pounds, maybe elevated tracks like Chicago and NYC did in the later 19th century would add to the steampunk look and feel.