There are Mahoganies available if you know where to look, and project black/white mottled.
I have two cockerels, and can only keep one. One is big and very spangled, the other is almost solid brown, skinny, but has a beautiful long neck. They both have good and bad points and it's killing me to decide between them.
Other option is to cull them both, and hope one of my chicks will replace them.
Most owners write that a cockerel needs a first molt before you can decide whether to keep him as a breeder or not? Maybe hold onto both of them until you see them at maturity?