I had the same thing happen to me - paid the extra for all pullets, got two roos out of fifteen chicks. My boys get along fine, they mate in front of each other, sometimes one right after the other on the same hen, but they don't fight about it.
HOWEVER, I have eleven hens and the two boys, and my poor girls are naked from the continual mating. A couple are actually spending so much time on the roost where they feel safe that they are getting thin. They were fine last fall, but now they're a year old and the boys are in full swing with mating. I've been trying to find a home or homes for the boys, with no luck so far. I absolutely must get at least one of them out of there before one of the hens is hurt by the spurs on her bare skin - not to mention, they'll need feathers before winter comes again, and they're not having a chance to regrow them.
So yes, the roos may well get along, but if I read your post right, you don't have nearly enough hens to keep two roos satisfied safely. From what I understand you may not have enough hens for one rooster. I was told last fall, and didn't listen, because everything was fine at the time. Well, it's not fine now, I have stressed, naked hens and two roosters I can't find homes for. Please ask the more experienced folks about your hen to rooster ratio, I'd hate to see you wind up in the same situation I'm in!