I should add that I never updated the original thread, but the campus network that I put in off the grid in Zambia is still going strong almost 2 years later. It's a mix of Unifi AC LR's, a UniFi AC Outdoor and 2 pairs of Nanobeam AC's for the point-to-point links. Also a USG. I was able to teach some of the local students and staff (who have never owned a computer, but quite bright and catch on quickly) enough of the basics to administrate it. I'm quite happy with the Ubiquiti stuff.