My pet rabbit broke his leg

My sweet 8 year old New Zealand white sustained a fracture on his front leg, i'm not sure how or when, but I noticed last night. The vet says $700-900 to amputate and likely a couple thousand to operate and save it, although might not even heal. He's contacting another vet to look at options. Have you had a pet rabbit break a leg? If so, what did you do?