Thanks for those details! That is certainly a long distance to cover for motion detection. The best solution for a range like this would be to add a Smart Lighting Motion Sensor and Bridge. The Motion Sensor can be placed in the desired area of your property, and then linked to trigger your Cam or Doorbells to record via the Bridge.
While the Bridge is intended to be placed in your home and connect to your in-home wifi, it will then communicate to your other Smart Lighting devices through a low power radio frequency that allows your Motion Sensor to connect at a much further distance than wifi would.