One of the best ways to avoid stressing a new BP is to limit handling to only what is necessary for husbandry (cleaning etc.) until they have eaten at least two times in a row. Then start with short handling sessions. If she continues to eat well, you can gradually lengthen the time you're handling her.
Thanks for all the advice everyone! This may be the toughest "rule" for my daughter- she's just crazy for her new friend. but we'll try to keep ourselves restrained