I use a Mavic Mini 2 at work for photos and video of outdoor events. Someone within the company came up to me after the last flight I did and asked if I would be interested in a Mavic 2 Pro. I asked how much he wanted and he said $500! Sounded too good to be true, so I thought maybe he didn't know what kind of Mavic he had. He showed me pics and confirmed that it's a Mavic 2 Pro. He said he's flown it less than 10 times, but on a few of his last flights, he got the "Gimbal overheating" message. This sounds like a great deal if it's an easy fix like maybe some dust or dirt or a stuck fan. Should I buy it and see if a thorough cleaning with some compressed air will fix it? Any ideas on what a repair might cost if I need to send it in to DJI.