Giant Arthur Needs Help Healing

Arthur is a sweet, gentle, majestic 132-pound Great Pyrenees. He was rescued from the shelter with a limp which we learned was becuase of a fully torn ligament in his left knee and a partially torn ligament in his right knee.  This is incredibly painful and requires surgical repair so that he can walk and live pain-free.  The surgery is very pricey, at least $3,500 per knee.  We might be able to get away with doing only one knee now but surgery on the other knee is inevitable.  Please help us heal Arthur!