So, uh, who owns the moon, and that tunnel in particular? Is it first come first serve?
You’ll probably need the backing of a nuclear power, although off-world representation of earthly countries might not turn out to be particularly credible threats (enough to intimidate new emerging space-based powers), or remain truly politically cohesive with their root terrestrial counterparts, depending...
One can dream.
For a more complete look at the legal issues involved, seehttp://www.thespacereview.com/article/3286/1
I do recall buying an acre as a fun present back in the day..
0: http://www.dailymail.co.uk/news/article-2654045/Id-buy-moon-...
1st google hit, but seems fittingly trash..