Sometimes barn cats take care of each other's kittens, and that could be the case here. However, you would be taking a chance. As for the mothers leaving the rooms, that's only natural. Normally (when there's not a Tom around) they go in and out of the kittens' room after staying with them constantly for a few days. They would cry to go back in if they heard a a kitten call, or if they were too full of milk. At night, they would probably lie with them most of the time. So it's unfortunate that they can't have more freedom. They need love and attention.
I would put the Tom in a large dog cage and let the mother cats have exercise. Of course, the doors to the kittens' rooms should be kept shut. To make sure the babies are safe, I would not let the mothers visit each other's litter. It could be safe, but don't take the chance.
The Tom needs exercise too, so it would be great if the two mother cats had their exercise together (away from the kittens), with the Tom confined to a cat playpen or dog cage. And then the mother cats could return to their rooms. You would do this several times a day, at least. I know this is a lot of trouble, but it's the kind thing to do.
I would let the kittens out with supervision only. They will be climbing out on their own soon. Between 4 and 5 weeks they will be able to eat soft kitten food, if you help them. Soon after, Mother will not be able to keep up with the clean up, and she and you can teach the little ones to scratch in the litter box. They'll soon get the idea.
I'm very sorry you have been ill. This is obviously not a good time to have this kind of work. But, they're here now!
You should always charge for kittens, whether or not they have papers. Do you have their pedigrees? Are they registered, and from good stock? All of those things are important when selling the kittens. However, more important is that you screen the buyers carefully. They should not allow their kittens outdoors without leashes or an enclosure, they should be willing to read and learn if these are their first pets, the home should be permanent and loving,
and children should be very gentle with kittens. Their little legs could easily be broken by a wrong step. Find out everything you can about the people who will purchase the kittens. You might want to draw up a contract, stipulating these things, and that if they can't keep the kitten you get the kitten back. That will give you some peace of mind. Of course, these are my opinions; there are many people who allow their cats out. I don't consider it safe.
Here is a link that should be helpful, and we will continue to help, if needed. I hope you are feeling well now, and that all works out well for the kittens, mother cats, and the male.
http://cats.about.com/cs/kittencare/a/k ... styear.htm