If it was really important to her, she could use TV White Space for less than $6500 in equipment costs, assuming that whoever controls the water tower would be

If it was really important to her, she could use TV White Space for less than $6500 in equipment costs, assuming that whoever controls the water tower would be okay with installing a base station. She could get 60mbps raw rate UDP (or 30mbps if two adjacent channels are not available in her area, but they probably would be).