Re-homing red nose female pit

Re-homing. She was stepped on as a pup. We got her for my son at 6 weeks. Took her then extra day to vet. He put a rod in her femer. She has no lasting effects or none noticeable. Runs and walks without difficulty.  Asking $400 for half vet bill. Money can be paid directly to vet if preferred. Son moved and left pup. She is going to be a very large dog.