I think you should rethink the AOW requirement. More important is the diving history of the diver. I know plenty of OW divers who could teach many DM's a thing or two about the underwater world.
Perhaps a review of the logbook (recent dives/ similar experience) would be more appropriate.
I think you would have a better turn-out if you can open it up this way.
If my calendar allows, I'll be happy to participate.
I agree. In addition to some OW divers being more than capable, there also may be some AOW divers who are not. A c-card is only a piece of plastic. What really counts is knowledge, ability, and experience.