Need help on a outdoor wireless work setup.

Hi, recently got a request from client. The client is asking for a Wi-Fi network set up in a festival for few moving shopping booths (6-10), randomly moving, no given path, but not fast. The area is about 1000 x 1500 meters. I am thinking about put up 3x mANT 19S at center spot to cover the whole area (about 10 meters high, a bit angle down), and use NetMetal ac2 with 13dBi omni antenna as Client bridge to provide ethernet access for the equipment in the booths, I think I can attach the omni antenna 3 meters above the booth. Will this setup work? please give me some inputs. Thank you very much.

If you use separated frequencies (distanced channels) not should be a problem.

Regards.