Several issues regarding this:
UAS (Drones) are limited to 400' in height in non-regulated airspace and are only allowed to fly VLOS (Visual Line of Sight).
So getting an aerial view of 6,000 acres would present some problems with a drone. I currently take progress photos of a 100 acre construction site and it needs to take several hundred images of the site that I then stitch together for 1 image. Google earth does the same thing with satellite imagery.
Flying over SGL's or any property gets into some legal arguments that have yet to be truly settled in court. Yes the PGC did ban flying UAS over the gamelands. The PGC was informed by the state's legal department that they have no jurisdiction over the airspace above the gamelands, but passed it anyways. They can ban take-off and landing on the SGL's, but the airspace above them is regulated by the FAA at the current time. So you cold take-off and land from adjoining public roadways and properties then fly into the airspace above the gamelands without the PGC being able to stop you.
"Shooting Down of Drones", I hear this all the time. Drones are registered aircraft, just like airplanes and helicopters. So shooting one down could possibly land you in hot water with the FAA, there are already several cases of this happening. I've heard people say, "Well I'll just claim I was shooting a bird", Now you are in violations of game laws where you are responsible to properly identify your target. What is the intent of the drone? Police now use them for surveillance, and you are going to shoot their drone down? There are idiot people out there using them for stupid things, but there are also good legitimate uses for them as well.