Obviously the girls can stay with their mothers.
The two boys can go in with the father upon separation but it is not likely to be able to be a long term arrangements. Three boars together generally does not work long term and once the babies reach their teens.
Make sure dad meets the male babies on neutral territory.
Dad can either be neutered, once six weeks post neuter safe can be bonded back in with the girls (following correct bonding procedure). This, I am aware, is not so easy in the US with knowledgeable vets being harder to find plus costs of neutering being sometimes prohibitive.
Or, he can be kept as a pair with one compatible male baby for life. Two boars together need a 180x60cm.
If you cannot keep the babies, then ensure when they are rehomed that they either go together, or that they only go to a home where they will be bonded with a single male.
Safest thing is to surrender any of the babies you cannot keep to a non kill shelter.
Cage sizes for the sows also depend on if you are keeping the female babies. For all four sows to be together in one cage, they require a space measuring 210x60cm.