Help raise money for my dogs surgery for his paw

Hi my names Ellie and I rescued my lovely dog named Butch from a very violent household, and when he was a puppy he got a injury to his paw that disrupted his growth plates in his paw which has caused him to have Carpal Valgus, which is a type of angular limb deformity where the paw is turned outwards from his wrist, it causes him pain and difficulty bearing weight on it and it gets stiff witch restricts his movement in his paw, so he isn’t able to play as much as other dogs or run. the vets they can do surgery to realign the bones and stabilise the Carpal joint but it cost up to £4000, I would really appreciate if anyone could even put £1 just so I can help him get healthy and to stop it from getting worse, that he can run around and put weight into it without being in pain, anyone that can help my baby I would appreciate it so much.