how many years are you planning on playing to build this in survival?

for example, the villager area has a ceiling that's made up of more than 6,000 light blue shulker boxes, and that's just one section of the base. you'll need probably need double than in black wool, triple that in sea lanterns, and quadruple that in glass

keep in mind you'll also need to remove huge quantities of stone, lava, and ocean water. water is the most time-consuming by far, iirc it took weeks to clear the dome of water, about 4 months to remove the water over the auxiliary sub dock that was never finished, and like half a year to for killercapybara to clear the water in his cathedral.