Emotional Support Dog for Chase

My Sister and her family, not only lost their family pet yesterday, but they also lost Chase's emotional support dog. Chase has a lot of special needs, including a severe seizure disorder. I have the opportunity to purchase another puppy from Pebbles blood line and I know with the stresses of life with Chase's care and the void that Pebbles left, this would be a huge blessing to their family. If I could buy the puppy myself, I would do it in a minute, but I need your help. Even $10 would help. Thank you so much for any help you can give