Ethernet backhaul over point to point wireless connection

I have a RBR50 + 3 satellites.  One of the satellites is a remote building and the mesh is struggling to maintain a decent link to that satellite because of the distance and walls between satellites.  I'm wondering whether I can use a point to point wireless connection using something like two TP-Link CPE710 antennas to create a link between the satellites that they (the satellites) would just view as wired ethernet connection / backhaul ??

I can't get a wired connection over there without digging up my drive, and the remote building is on a different electrical distribution panel than the house (preventing a power line type solution).

Am also trying to avoid spending £250+ on an external capable satellite (like the RBS50-Y).

Any ideas / suggestions or help would be much appreciated ??

David.