You could try the wholesaler in Queens called Gourmand Specialty Foods (Formerly De Choix Specialty foods). I don't know if they'll sell retail, but they'll certainly have all the chocolates you're trying to find. 718/507-8080. Ask for Rick and tell him that Charles from Charles and Laurel Desserts referred you. Maybe they'll ship to you. They have a pretty comprehensive catalogue that includes not only chocolate, but ingredients and delicacies of all sorts. I suspect that they have a minimum order.