Urgent vet bill help

Tonight, I lost my beautiful boy James. I am in total shock and totally heartbroken. I got James from the dogs home, he was a long termer who had proven difficult to re home due to his severe anxiety and dog fear. I loved him from the moment I saw him. We had a meet and greet and he and Potsy fell in love and he became our family member. 

Straight away I got James a dog behaviouralst and we got medications on board for his anxiety. He loved his family and his kids, and most of all me his mama. 

Sadly, today, he broke the back paling fence apart and ran down the road and attacked two other dogs. It is a long and devastating story but one of the dogs requires after hours vet care and I just simply can't afford it right now. The bill is looking to be $2200. This is so much stress on top of the loss of my best mate. Any help would be greatly appreciated in such a shit time