Orthopedic surgery for fennec fox

We took in this five month old female fennec fox last Friday from Minnesota and immediately noticed she couldn't put any weight on her right front leg. It was obviously swollen, so I called our USDA licensed veterinarian and she said to bring the baby in on Saturday (they are closed on the weekend, but she came in just for this fox). The X-rays showed both the radius and ulna were severly fractured (You can clearly see this in the photos). I called the lady who sent us the fox and she said it wasn't like that when she dropped it off at the airport. I told her that my vet believes this is an old injury, and that it didn't likely happen on the plane. The lady said she would do whatever it takes to make this right, so I told my vet to operate. Everything was scheduled for this morning (Monday, August 29) and my vet called me at 10:30 to say she couldn't perform the surgery. After consulting with an orthopedic specialist, they decided that pins wouldn't work and that the fox needs a plate and screws. The specialist said the surgery is normally over $4000. I called the original owner and told her what the vet said and she said she would just drive here from Minnesota and take her back. She doesn't want to pay for the surgery, and I believe she is just going to put the fox to sleep herself. I just called her back and said to stay in Minnesota. I told her if she shows up here, I will call the authorities, press charges for animal cruelty, and put her name out there for everyone to see. I'm going to pay for the surgery out of my own pocket and try and save this little girl's life, so any donations would be greatly appreciated. We run a licensed, non-profit, no-kill exotic animal rescue and wouldn't even think about putting this sweet fox to sleep if there's a chance to save her. She deserves to live. The worst case scenario is she loses her leg, but at least she would be alive and spend her life with us, educating people about these amazing animals. There will be a lot of after-care, a special cage where she can't move around (for 6-8 weeks) and she will have to wear an Elizabethian collar for up to two months. Sorry for the lengthy description, but I wanted to put everything in here.