I have been calling around on and off for a few months to find a lock mechanism for our Weathervane Doorwall thats broken. I recently found two companies that have actual Weathervane parts or very similar pieces, they are :
1. Window & Door Tech - Mark Auxter who I used today. A very nice guy came in repaired the door and was done in no time. 1-517-404-2267.
2 Brighton Windows 1-248-926-4500 or 1-877-669-8263