Hey guys, I'm new here and I'm not familiar with access points and etc. so I figured I should ask here what would be the best option for sharing my internet signal from the main building to my other two buldings (distance between them is not more than 10-15 meters), distance is around 1250m (4100 feet), with clear visibility, nothing i sight because I was thinking on putting the antenna on an old chimney which is around 20 meters high. The internet is too bad in the other buildings (7mbps on a good day) and I have fiber optic internet in the main so I thought sharing it would be the only solution.

I know there are probably numerous similar threads, but I am a dummy when it comes to this stuff so any help would be much appreciated.