With all due respect, if it would be me dealing with such an issue I would contact somebody official from ATC or so and get them involved to clear things up. I could not sleep, if there is an accident in the future which could have been prevented by taking a closer look to the potential thread of such a R/C field. Yes, I was a R/C modeler long time ago, but this does not justify to let people die. If you look at YT what these buggers do today, be it R/C telemetry videos from right within GS/LOC of a big airport, or drones flying in NFZ, it is only a matter of time until somebody is killed by such. Don't be part of the structure allowing that.