Those are the only ones I have in my BYC uploads. Original bloodline from Sandhill Preservation. I have added some bloodlines from other private breeders in the last two years which most are BYC members.
Ive looked for some information on these, and it doesnt seem that these will produce a recognized color; they will be a mix. So Im afraid we will have to stay with the blue/black/splash orpingtons as the current offering.