Starsuperion ... beautiful work again!
forgive me for one more indulgence psion..
but, please, take a few moments and watch these clips from "Castrovalva"..
it seems to me that the bulk of the Tardis should be rooms.. and levels and decks, and more rooms..maybe my earlier designs were too bulky, so what I have done is to increase the rooms, and the mass which consist mostly of rooms.. and only a light frame or exoskeleton exists around the structure to produce the rooms, maintain it's form, and direct the flow of space-time into the central core and form an access to a vortex..
anyhow, the "architectural configuration" system is like I stated before, whereby the raw matter is farmed from subspace and or the vortex, and turned into rooms for use by the tardis... these structures are all controlled by the gravity beam system within the shielded area in the center of the tardis..I am going to have to rethink the type 80 design as well..
anyhow, let me know what you think of this, which better fits the feel of what they try to convey in "Castrovalva"
there are spaces between the rings of the ship, in the Side view
By Jove, I think I got it!