Surgery for Charlie

Charlie is a 7 week old puppy! My son and his family rescued Charlie and his sister because the farm where they were found was going to put them down. Charlie however, needs a major surgery which will cost approximately $1,300 with a $600 down payment. He evidently had an accident after or during birth that has caused skin to scar over his penis. He had some urine and pus under the skin which the vet drained and she put a catheter in so that the urine will be able to drain out.She can save him and she thinks that she can keep him intact. Due to circumstances the money isn't available right now and they have a timeline of a week to get the surgery. He has to wear a cone and is so uncomfortable. We are hoping and praying that we will be able to get the necessary funds to have the surgery within the timeline given. The only other option is to have him put down.