Bulldogs World

Hello my husband I have not had are boy dog very long we have had a girl bull dog (Peanut) and desided we wanted to get a boy with good color and blood line to breed with her . so many in are family love bull dogs and we could give are daughter a puppy one day.  we bought a male on line from a breeder things looked good. He was $6000 as a puppy but the breeder said he was going to keep him to use for stud and changed his mind, so we got him for $3000 he was 7 months old and thats what we were looking for an older dog for are female. We had the dog deliverd to us from Ohio. When we got him there were no vet papers and the dog looked sick. he was timid and his hair was stained with pee. He went to the bathroom and it was 80% worms. he did not stand well. we called the breeder right away and he said it was stress from the trip and he new nothing about the worms. he said his other dogs dont have them. we asked about shots and vet records. he said oh i gave the shots myself. so we got Hershy the dog to thevet  next morning. the vet said it was sad he looked like he did that he was not taken care of. He said he can fix the worm problem eassy and help get him healthy. But that he found a heart murmur 2-3 and said he should not breed with are female. That the puppys may have one also. We do not want to bring into the world more bad health dogs. The breeder said are vet is a quack and dont know what he is talking about. But are vet gave us a letter about the legs and the murmur.  Are heart murmurs pasted on? and any advise on what we should do. we used all are savings to get him. we do not have a lot of money to invest in a lot of health problem. Would it be wise for us to take are $3000 loss and give him to a family that can help him .  Thank you for listing