I plan on making a headless FTP server with OwnCloud on a RasPi or a low end used CPU.
I need this to be accessible over a 2.5km radius. Maybe I have to use a system of multiple routers to achieve this. I am not sure what kind of hardware is required.
At first I thought some kind of high power WiMax router but I don't what to get and whatever I do see with WiMax in the title turns out to be deadly expensive.
I'm not averse to building a Project Loon type craft work to empower the area. As a student, my objective is to empower this area that lacks proper internet connectivity with knowledge material such as an offline version of Wikipedia.
I need a router hardware recommendation. Looking for the cheapest solution with highest performance.