We’re going the planning of a new network and is the first time that we use mikrotik.

We need six remote nodes to cover the area, and the main problem is that three nodes are behind mountains. Each remote node is based on RB532+RB502 and it has four radios:
ath0: exclusively for interconnection of the infraestructure
ath1: 2.4 Ghz AP mode with 10db omni antenna
ath2: 5.x Ghz AP mode with 17db sector antenna
ath3: 5.x Ghz AP mode with 17db sector antenna
What do you think is the best way to connect the nodes?
WDS, client-AP…?
Any little help is appreciated