Yes, it's always a good idea to get permission from the creator if you can contact them. Kozaburo kindly gave me permission to use a few of his hair models in my movie. As with everyone who contributed, whether I bought the items or they allowed me to use them, proper credit is given in the project, I live by that rule. :) I agree, I'm very surprised these aren't in the marketplace. Kozaburo truly deserves a big thank-you from all of us here who use his hair models and maps!