Actually made, albeit little, progress on the Excalibur using the clone tool in Minecraft. I updated the grid where it's contained, and will use the grid I made when I first started on the ground to map it. This'll come really in handy for getting scaling correct deck by deck. Clone from center, and which grid points, and build it vector by vector. Fill tool can do the rest. Looks like another airship will eventually fly the skies, and I might even add in the details for all the rooms. Additional points if I can get things functional and cool looking while at it. Might require more redstone and command block trickery (a good test for logic gate tricks).
EDIT:
Instead of shrines in that world, I'm using fancy tech to do the over-rides (they generally look similar to the teleporter next to the sand castle). Already got a time machine setup, and a small teleporter network to different art locations. 1 for the main project (Excalibur; red beam shines), and another for freestyle art (black beam) not too far away. Depending on scale of projects, I might even have pixel art lands and the like too. Whatever comes to mind. I can just clone a teleporter, and give it new jump/return coordinates. All that really remains so far is a weather control device. Definitely more efficient to use than the solar panel reset button I had previously.