Internet Access to Zamiba Refugee Camps

I am trying to provide internet access to three refugee camps in Zambia -Meheba, Mwange and kala, which will provide educational services through an American Non Profit called Forgenow.org - run by very motivated college students.

I would appreciate any suggestions or comments from anyone in the forum - the camps have no other means of connecting and have limited power via solar cell panels. 

The systems should be fairly rugged, easy to ship, set up and maintain, and provide the best access for a reasonable price.  I would prefer a fixed rate for unlimited access.


Thank anyone for any help.