Made a mini model of my sketch to get a better sense of its vibe, along with making some plans and measurements. Some feedback and discussion would be great. To emphasize, I'm really just marketing the structure and the star sections. The castle itself and the habitation section could be anything.
The approximate size is 5x5 64x bases. I estimated the brickcount of the star sections fully covered and with details to be about 40-50k, meaning there should be plenty of brickcount left for the castle and mid section. Anti's existing machinery could be integrated easily. There's major structural work, terraining, gardening, exteriors and ample interior space to work with, so everyone would have a chance to contribute.
And ofc welcome, Khaz!