Why not purchase blue Orpingtons? Ya know, convince your dad that the breed does come in different colors than buff. It's funny that he and many are stuck on the Orps, though good layers, are not excellent layers. And with the blue color you get black and splash too so not all the same chicken running everywhere.
As for buff columbian pattern look into buff sussex. A few here on BYC breed them and now and then you'll see eggs on ebay.
As for buff columbian pattern look into buff sussex. A few here on BYC breed them and now and then you'll see eggs on ebay.