After adding the fiberglass replacement piece, I did a lot of filing and sanding.
The picutures show the Before, and After photos of my plane. I also included a picture of the factory Sonex-B vent for comparison.
I still have some sanding, filling, and painting before it looks as good as the factory plane, but then again, mine isn't going to be in a display booth at Oshkosh. My main concern is functionality.