^^^ Curious. Wondering now why it needs to be stepped. Theoretically, through the use of artificial gravity and inertial dampeners, turbolifts could go upside-down and at a slant without the passengers ever knowing.
To the OP - beautiful work, BTW!
I'm working on a 1:1 WWII Minecraft Yamato right now (by hand) and it's quite challenging due to the scope and size of the vessel. I need to go mine more cobblestones.