That is basically what I'm saying, yes.Are you saying I can give them a bachelor pad in sight of the hens and pullets, and they wont fight with each other in their pen?
But there WILL be squabbles as there is with ANY sibling group living together. They may have disagreements at times, but it isn't *usually* an all out bloody battle.
Since they are still young... they will likely get their hormone rush at slightly varying times. The one who gets teenage hormones first may *seem* like the biggest jerk and/or head cock... but as others gain their hormones they *may* challenge that pecking order and come into their own set of behaviors.
Seeing the hens... does not create more fighting in my experience. The top cock will often hang out near the fence... treat call, dance... and even let the ladies clean his comb and such. He *may* try to run off any contenders. Or they may all be treat calling at slightly different portions of the fence line.

Separating while still young like now... they will first be upset about the change. But will quickly settle into their own foraging type routine and forget about the missing flock mates. Eventually.. they will be more interested in the ladies again and try to woo them at the fence.