Princess Lila 4 month old puppy in need of surgery

Hi, my name is Candice.i have a 4-month-old bully pit puppy, her name is Princess Lila, as my granddaughter calls her, and she means the world to me and my family ,I new she was just sent from my husband in heaven because she was born on my birthday 6-20 she fell off some steps that where on the top floor and broke and shattered her leg in a few places. The vets are saying that she could use a cast and it might heal but if it does heal she won't be able to use it as normal it would more than likely grow back straight and that can cause problems for her in the long run so the other options are to have surgery or amputation of her leg and I would like to try and have the surgery done if possible. The vet said it will be $7,500 to have the surgery done, but they have a program where they will help with $3,000 of it. I just have to come up with the rest, which I can't afford and I do not have. I'm asking If you can help with anything, I would appreciate it so much. Thank you very much.