Take some time to think before you breed your bunny. Do not breed rabbits just to have bunnies "for sale." The money from selling them is so minimal that it probably wouldn't cover the feed cost. Rabbits should be bred for a purpose, such as for show, for wool or for replacement of stock. If there are some bunnies left after all the purposes are satisfied, then selling them is justified. Humane societies are overflowing with unwanted rabbits who are put to sleep daily because there are not enough homes. You don't want to add any more.
For more information, please read Breeding Your Rabbit