Hi, I'm trying to find a replacement camera for my otherwise perfect P3P. A disagreement with a hard object. The drone actually came home, with no camera :-(. At $539, the camera is a huge price of a new P3P. A used P3P might start selling for near the new camera price after the P4 release. ANYONE KNOW OF A USED P3P 4K CAMERA IN GOOD SHAPE, CHEAPER THAN RETAIL? I have another P3P -- I'm in love -- but a complete spare would be good. I could just go advanced (1080p), for the one replacement. Thoughts?