I have sold them in the past. At the moment I have two of the four girls separated from the rooster because they were going broody for the second time this season. I already have a bunch of chicks and didn't want more. My Marans are not bred for SOP birds. Instead, I am using them as a dark egg project. I'm just now in the first phase.
I'd love to see how your project goes!!! You should start a diary blog sochicken freaks like me can follow you!!lol