Hi all. New to the forum. Own a 121 acre farm that I would like to monitor (think about a 1/2 mile square). First goal would be to fly over it all and generate a unified aerial photo. Would this be possible using a Drone? Second goal would be to survey the property real time, looking for cows or whatnot. I presume that is doable although flight times, as I understand them, at around 20 minutes would be a concern. Thoughts?