Upload & Sell: On
You're out in what the FAA deems "sparsely populated", so the regs, under Section 14.410, require no intentional aerobatic flight within five hundred feet of a structure, vehicle, person or vessel. Regs are fine, but any pilot who is just out playing, unless he's Sean Tucker level, should leave a lot more than 500 feet between him and the sudden stop. Statistics prove that it's just a matter of time for your Starduster pilot, 500' is not bright.
Sensor cleaning, I have found that the Nikon sensor is more difficult to clean than that of a Canon. Don't know why, but the liquid, no matter how carefully and sparingly you apply it, leaves residue on the Nikon. This shouldn't cause you to not do it, but plan on spending more time, and using more swabs, to get to the squeaky clean sensor stage. My 810's generally take 15 to 20 minutes each and I'll use up at least three swabs. The 1DX bodies take one old swab, one new swab, and about 5 minutes.
Glenn's Nikon's take a coal shovel, half a gallon of sensor clean, about ten old swabs and about five new ones.................