Help my Cat Bobo get his knee reconstruction surgery

Hi, my cat bobo was hit by a car. Unfortunately it was a hit and run so we couldn’t find the person who did this horrific act. Due to financial issues, i cannot afford his surgery and if we don’t do it he will get arthritis and this will affect his living in the long run. Please help me even if it’s a dollar, anything helps. This is worsening my mental health as bobo is my main source of emotional support. His leg is affecting him immensely as he is constantly in pain, it is preventing him from going bathroom by himself, he’s not eating much, and is always tired and i am very scared for him. God bless