If you are not allergic to cats, try to find a donor who is not either. Allergies for the most part are genetically pasted through the parents, so if neither parent is allergic, there is a smaller chance that the child will be allergic. As far as the adoption issue, talk to someone who has adopted before. They may be able to tell you about the kinds of things adoption agencies look for in adopting families. As hard as it may sound, you may have to make a choice between keeping all of your kitties and letting a few of them go to a family who would take good care of them. It will depend on how much you want to be a 'human' mommy versus a 'kitty' mommy.