You'll have the best luck in the spring getting those. I eventually had to get hatching eggs and I'm glad I did, they are super quality birds. I did see one hatchery with them once but I don't think they carry them now, I'll look.
Henny we have hatching eggs for black, blue splash orpingtons....If that will help you...We're still shipping and we do have them listed over in auction. Thanks and have a blessed day. Nancy