Please help fund Sages surgery

Sage is a 10 month old rescue mini Australian Shepherd service animal in training. I just rescued him not even a month ago. I am a college student who loves this dog more than anything in the entire world. Sage recently cut his foot as shown in the picture above and requires stitches which is a surgical procedure for dogs. I was able to have the animal hospital reduce the cost of the procedure from 1,200$ to 400$ considering my situation. I am in a tight situation and really could use the assistance in paying for his procedure so I am not drowned by my bills. I understand this is something a dog owner needs to be prepared for but I had rescued him on a whim knowing I need him and he needs me as well. No matter what he is my first priority and I always will do everything to make sure he has the life he deserves. Please consider donating to the cause.