To build this in survival took weeks. To build the function file took a few days. Getting the shulkers from the end in survival takes a while.

I think you missed the point. Like most of my builds, this structure can be totally build in a Survival world. This is a legitimate way to turn off hostile mob spawning in a no-cheats world.

I am actually building this structure in my survival only server world right now. Trust me it is very difficult to build in Survival mode, but definitely not impossible.

I realize people need to technically cheat to use function files, but my goal is help people build structures that they might have a very difficult time designing to begin with.