I'm communication systems engineering student, final year.
I've experience of setting up a WISP/WiFi Hotspot in my village where there was no DSL connection, I brought the internet wirelessly from 8.5KM and distributed it over WiFi, it is working good.
If u want, I can work this out for u.
cost is not as much as some people are telling, its quite affordable.
send ur mobile number here: zeeshan(dot)310(at)gmail(dot)com, i'll msg u and we'll discuss details. (i can't post my details here, because spam starts following me)