reply to yutz23
Re: Networking between buildings Fiber would be my first choice. My second choice would be VDSL2 (which may also require trenching if you can't patch through existing copper).
Third choice would be point-to-multipoint wireless, and I can tell you from experience that even 5 GHz can be made to work through a limited amount of trees, over a limited distance. I have a 600m PtP link going through 70m of aspen, and never a hiccup in two years. Both ends are Ubiquiti Bullet M5 on a 28 dBi dish.
As is always with the case with DSL and wireless, your mileage may vary, and fiber is still your best bet if you can do it.