Helping me and my fur kid in a tough spot

While running about with some of her doggie friends on our daily walk, my lab / staffie cross, Mouse, tore a cruciate ligament. The earliest possible surgery has been booked but I need help to pay for it. It's more than I can afford right now but needs to be paid. I had insurance but had no choice but to cancel it recently due to increasing expenses and multiple declined applications - I was putting money in but getting nothing back. Any little bit of help would be appreciated by myself, Mouse and her fur-kid brother, Merlin.