I flew my Phantom 3 Standard in high winds (18-20+ MPH) Saturday. Landed ok but trying to take off again one rotor was not working correctly. When I spin the prop it makes a grinding sound like a bad bearing. I have four options - 1) replace 1 or all 4 rotor motors using another P3S I have with a broken camera, 2) move the good camera to the older unit (which actually has less hours on it), or 3) have a shop make the swap or install new motors, or 4) buy a new refurbished Phantom. I'm not an electronics guru but I'm not afraid to try the repair. What do you experts recommend? Thanks in advance!