Well, first you need a nest box about 7 inches wide, 13 inches long, and 7 inchestall. Don't worry, I know how to do this kind of stuff. I have baby rabbits at least once a month, if not more, because I'm a Dutch show breeder. Well, once you have a nest box, put about two inches of bedding at the bottom of the box and two inches of hay on top of that. Make a little nest in the middle of the hay and place the kits in it. If you're lucky, the mother still might pull her fur out. See, when rabbits have kits, they'll rip their fur out to keep their babies warm. If she does or doesn't you still need a heat lamp. place a heat lamp over the cage for them. After your done messing with everything, get a cotton ball and some vanilla extract and smear it on all the kits' foreheads, and then smear it on the mother's nose. Then she won't be able to smell you. At seven weeks old, you can sell them. By nine weeks old, you need to get rid of all of them before they start reproducing again.
You CANNOT put doe and buck rabbits together EVER. It doesn't matter what month or season it is, it just doesn't work that way. They breed so rapidly. It takes on average thiry-one days for a rabbit to give birth, and when they give birth, they are able to be bred again, although this is very stressing to the rabbit, and it couldn't be good for it. If you're not a breeder, and you don't want to be, thatn DON'T PUT DOES AND BUCKS TOGETHER!! Spay and neuter them if that's what you want to do.