Raising $ for Greyhound to save leg

We just found out our sweet and dearly loved Greyhound, Tiberius (aka Ty), needs surgery to remove a plate and screws that were placed 18 months ago. He originally had a poorly healed hock fracture from his racing days. His body has all of a sudden, rejected the hardware and and the vet said it must be removed ASAP in order to save his leg. If we wait, he risks loosing his leg and possibly dying from the infection. We were blessed to have had the initial payment temporarily given to pay for the surgery, but we need to earn/raise the money to pay them back. We are in a difficult place financially, and it will take a while for us to pay them back. Having the money donated or at least part of it donated will make it easier to reimburse that money.