Grizzlies amputation

Hi everyone I'm Frances brassard. My son and I are looking for help to save his dog grizzly. She has bone cancer on her foot, cancer has not spread to organs so there is alot of hope for her.

They are doing a full leg amputation,

Grizzly has been at the vet for well over a week, with meds and surgery you can imagine the price tag.. any help would be amazingly awesome..