I helped a guy finish a Series 5 several years ago. His intent was to take the Kitfox to Alaska and wanted some way to vent heated air to the windshield. We did essentially what Dave did. I made up some fiberglass scoops that would capture a portion of the downward flowing air and direct it up through scat tubing to the glare shield. I have photos of the lower parts, but none of the finished glare shield. I had made some slot shaped fiberglass outlets that the scat tube was attached to - something like a half inch by five inches. I checked and still have the tooling so if interested in some help with parts, send a private message.