For anyone who cares, I am now making my active world available for download, updated every night.
I finished making my big-ass pool (and putting a roof over it).
Though it probably goes without saying, this is a Survival Single-Player world. All of my structures are connected by tunnels/shafts.
I've not done anything in the Nether other than build a portal to it.
I can't guarantee it will change every day but I probably mess with it a few times a week.