I have kept 2 roos but with around 20+ hens. They were raised together. They divided up the ladies and gave each other space mostly. I will say they need a lot of space for this work and often it just does not work out. When working with animals esp 2 roosters always have a back up plan.
11 weeks old?
If so, I'm sorry looks like a cockerel to me also.
Lots of folks love this breed and color. Maybe you can easily rehome one if your not going to keep 2.