Your best choice is to let the dealer send you a new, free crown and stem assembly .. I would be startled if a member here had a crown for this uncommon model just sitting around.
I'm 100% certain that the dealer will be happy to send you a new crown and stem.
I don't know how much you want this watch to owe you but while it's with George, it really is a good idea to have him do a full service on it. Your call, tho.
Keep in mind that gen Rolex owners pay $700 for a service so the 1-2 hundred you might pay is a straight up bargain.