I rotationally graze sheep and goats and cows and donkey all together as a "flerd", my paddocks are about an acre each. I do not separate males from females, and they all seem to breed once a year and lamb / kid all within a week or two in the Spring.
Recommend get your fence and watering set up before you get livestock. Consider "triangular jump gates" for your LGDs so they can access all parts of your farm. But move their food in a live-stock proof feeding sled with an automatic dog kibble feeder (weather-proofed of course)
Also recommend getting experiencedLGDs before the livestock or very soon after getting livestock. Do no be tempted raising LGD puppies yourself with at least one adult experienced LGD to teach them and discipline them. Believe me, we learned the hard way, when I tell you to happily pay $1000 to $1500 per dog for a mature farm experienced/ trained LGD. It might be a year and a half before puppies are reliable and mature / brave enough to fully take on an LGD role. And you are MUCH better off having at least 2 mature dogs, more if you can afford it. We have Great Pyrennes. We have been through 2 adopted fully grown pyrennes with sub-optimal backgrounds... again dont waste your time and try the "cheap" route of adopting from the dog pound or Pyrennes (or other LGD Bbreeds) rescue places. Im sure there be some who disagree with me, but these are MY experiences. In the future we will bite the bullet and shell out the $1500 for a good proven LGD from a trusted source.