I'd keep two for now, and see how it goes. They are still very young, so more 'interesting' behaviors may still turn up. And any showing bad thoughts at this age may turn out badly.
Mary
This will be interesting!
I too want cockerels to stay out of my space, and pay attention to the flock, not me. Having adult hens, and if possible adult roosters, does help civilize the boys. However, hormones hit, and what's 'cute' in a chick becomes zero respect and aggression in maturing...