Actually, I wonder if something as small as Daedalus even needs a lengthwise turboshaft. An elevator in the sphere, sure. But how hard is it for a crew to walk 100 meters? I work in a building that covers a million square feet and is roughly 1300 feet long. The cafeteria is 100 yard walk from my office, my favorite bathroom (the one with a window) is 100 yards in the other direction. The width of the building is roughly the same as the diameter of the TOS Enterprise's saucer, which is how far I have to walk to our printshop. It only takes a few minutes.