I have been looking since I got the car. No one makes a kit. Found plenty of kits for Mustangs though.
I looked at the ZL1 brake ducts and like the Corvette's they aren't that good. They fall short of actually bringing cool air directly to hub.
I'm probably do the same as others and make a custom set. You can buy the dust shields for the rotors fairly cheap and I'll just cut the hole for the adapter and have it spot welded on. As for the inlets, I had thought about using the DRL ports, but now I'm leaning towards attaching a duct inlets in the lower grille. On the far left and right of the grille area the back panel is flat and could be cut out to make room for a duct. The car is in stored for the winter now so I just need time to get it up on a lift and start taking measurements and figure out where to route the duct.