re: Don't post unless you plan on debating a subject.
Nobody needs help in knowing one telescope is cheaper than two and that nearly complete sky coverage means not all objects would be covered. And worst of all they would be separated by thousands of miles. The only good thing in that is one might be near the Lunar base.
Space based is better simply because we now have more experience with them than any future Moon base telescopes.
They make no effort to tell us how they would manage repairs in such a dusty environment and they design something not need to achieve the goal (an opical array).
BTW, the correct link is: PDF