I did a fix to my broken one
I used the plastic that a socket is attached to at a store so it can hang from a rack for the repair piece
I cut it to fit the broken area and then JB Weld to attach it, a dremel to trim it a little for the bolt
Hopefully this will hold and I saved myself $125 for a new cowl
Mine was not faded too badly, but I used Meguiars Ultimate Black Plastic Restorer anyway. Now looks factory new
May not be the prettiest repair, but should be strong enough