In sci.space.policy Andrew Nowicki <andrew@nospam.com> wrote:

Although I respect your technical expertise, I am not yet
convinced that this array would be expensive to make and
maintain. The array would be made of a large number of

Nothing on the far side of the moon, as hypothesized here, is
cheap to maintain!!!  It more or less has to be fire and forget
from a maintenance point of view.

(There is another sub-thread about earth based, transmit, arrays.)