Amazing idea
But a shitload of work.
The thing is that, it will take about 10 terrabytes to save the world in, if you are doing a copy of the world in minecraft.
You need atleast 1,000 proffesional builders to build 5 hour a day, if you want it to be finished next year.
I would love to be in a project like this, but i just haven't got that time.
Im sure that if, or when. the server officially comes up, it will get atleast 100 players/minute.
Now, i wish you all luck, but remember it will take time.