X2 although as has been said. My kids tend to get too attached to the roosters and boy is it hard for them to let go. In a single grouping I have found that two brothers or brother and son seem to work best. Any more than 2 roosters and I have found they get into trouble.My advice with that much breeding and hatching. You are going to need multiple facilities. I think if you hatch birds, you need a second set up for a bachelor pad. A bunch of juvenile roosters need to be kept away from the flock. Their harassment can lower egg production, and cause a great deal of strife and fighting with the flock masters. Just easier to separate them. When you hatch you can get a lot of roosters. Last year, I got 9 roosters and 3 hens...seriously.
The other point, roosters are a quick and cheap investment, with a large genetic influence. They are one of the easiest adds to a flock if there is not an established rooster. So, while it is fun to plan, I have never really had it all go according to the plan. People often have extra roosters for free or low cost, an easy way to change up the genetics, if you are loosing egg laying or if your carcasses are too thin, or you don't like the feather pattern.
While having an ongoing operation is an admirable goal, it does not always go that way. However, getting and adding different roosters is easily done.
Space is critical, being able to pen off birds is also important.
Mrs K