Find a high structure (a WISP in NW Minnesota here uses grain elevators in each town) you can attach to for a reasonable rent or trade out of service. Get a
3.65 Ghz license , place
Ubiquiti Rockets attached to sector antennas (or an Omni if you're covering a really small area), and use
Ubiquiti NanoStations for CPEs....If the structure is remote from the fiber termination use something like
Air Fiber for the back haul to fiber termination - this could start as a 150Mbps 5.8 GHZ point-point link if you're on a budget, but you'll want to eventually get a back haul that won't get saturated during heavy use. Ideally you'll want build fiber to each POP though.