The network itself will be better protected from vandalism than copper or fiber, and properly meshed, highly resistant to centralized attacks. Can you take out all of the Google shipping containers on the network?
Solar-powered repeater stations on the ground can turn whatever RF transport that's used and translate into WiFi.
This would be a perfect opportunity for a large-scale IPv6 rollout, while they're at it.
Interested? Someone's going to do it. Why not have it be you?