I asked here if anyone had experience with the Ubiquity 5-mile bridge hardware. Nobody responded, but with time, I grew so enamored of the advertised specs, I just had to order a pair.
I'm one of the several people here who wanted to bridge two relatively distant buildings without wire and trenching. So... I'll let you know when they arrive just what their hoopla is all about.
If they're half as good as they tout, they should be a very good solution, and at a pretty manageable price.
LLoyd