There are two breeds purported to have lower Fel-Dh1. This does not make them "hypoallergenic" but less allergenic. They would still need regular grooming and your daughter should stay away from the saliva and urine as well. That means no lessons on responsibility via the catbox. Lucky girl. :0)
Make sure you have a Plan B for the animal should the experiment fail. Good luck. Kittehs are awesome.