Bruce,
You are right Chet told me he is done with BBS Aussies and never liked shipping eggs due to PO treatment. He told me he may try another heritage breed in the future.
Rayanns cock bird has the right conformation to be an Australorp and the third lone hen could pass as a hatchery Australorp. I agree that the other two have very loose feathering and the color does not look like a true black, but that could be the lighting. There are subtle differences between an Orp and a BA that are listed in the American Standard of Perfection Book. I think anybody who is seriously trying to better a breed should purchase the book. Tail angles, size of combs, tight feathers and loose feathers, color of feet and soles, all of that is listed.
Kurt