The new Nv2 (TDMA) Sxt 5HnD CPE by Mikrotik can suprise with the speed, configurability and scalability. Even though it has only Level3 of Mikrotik License it is enough to make PtP bridge. This is an example shows how the bridge be done using MPLS instead of WDS.
Ubiquiti 5GHz airPrism Sector, 3 x 30°= 90° 22dbi High Density AP-5AC-90-HD
airMAX® ac BaseStation with airPrism® Technology
Model: AP-5AC-90-HD airPrism Sector
3x30 degree Airmax AC Sector antenna. Works with 3 Rocket 5 AC Prisim ...