Divide the moon up into N Billion equal pieces, and give each person on the planet an equal share. Then Bigelow can buy his land on the free market. Oh wait, that's not what he wants. He wants the moon carved up and given to the wealthiest people to make them even wealthier, backed by the world military to make sure that the poor get nothing out of it. Ah, capitalism. How you solve all the world's problems.
Then all he has to do is go to a poor country, where he can buy it all up for next to nothing anyway as no one is going to turn down money for land on the moon if you can't afford to eat.