To be honest, I would probably snap down on his head alot. As you said his balance is totally different from that of a regular wrestler, so to have any chance of getting around him, you would have to snap like crazy. Any attempt at a shot would be quickly blocked because he is so low to the ground. Turning him would be very tough as well. Most of the time you have to get leverage to turn your opponent, and he has a thick torso that a normal 103 pounder could not turn. I would probably try to block over one of his shoulders and just use my legs to drive him over. I think that the main challenge though, would come from that fact that he wrestles 103 and he is rediculously strong. Props to whoever won against him because that would be an incredibly difficult opponent to best.
Also, because this really interested me, I was checking up on it and found another wrestler of the same sort of disability. Check out Rohan Murphy of penn state. (listen to see how much he benchs!!)