Our Dog Dozers vet. bills

My husband Josh and I took our pontoon boat out yesterday (July 28th)with our 3 dogs.Dozer our 10 year old Boston terrier mix (rescue)was at the front of the boat which he loves to do. He lost his footing and fell off the boat while we were cruzing.He fell in between the pontoons. He got hit on the back left leg by the propeller. We rushed him to the ER. We are already over 1,400 dollars in and have very little money. I don't know yet how much the surgery is going to be.It is looking like he is going to loose  his leg. Please help if you can he is like one of our kids seeing how we dont have children. If you cant help please pray for his recovery,us and our other two dogs.