Emma's medical seizure dog

Emma has been diagnosed with epilepsy at 15 months old.  She is now 13 and is functioning at a 1st grade level. We struggle with severe seizures everyday. She is on 4 different seizure medications and also has a vagus nerve stimulator and we still struggling with daily seizures. We have teamed with Make-A-Wish to get a service dog, but need everybody's help. This service dog will be trained to alert us if emma is having a seizure and will also be trained in calming techniques and safety issues for emma. We must raise a portion of the money on our own anyway possible. The dog is approximately $20,000.  We would appreciate any help you can give. 
                                Thank you for your support
                                                  Emma's family