I ordered some heat insulation similar to the stuff Ducati puts on the outside of the OEM QS. I'm going to wrap the sensor on the cable and the one on the rod with it.
Ivan suggested mounting it inside of the air duct but I'd wonder about warranty issues if the gear position sensor ever .... the bed. Ducati created the air duct to cool it off and if I partially block it with an aftermarket QS sensor I could see that being an issue. But, I think if I mount it on top of the air duct with the supplied 3M velcro it will be removed and insulated enough from the hot stuff all should be good.