Thank you for your replies, yes he does have a slight "hunter's bump" but I am thinking when he gains a couple of hundred pounds it will be less pronounced. I've seen worse, but they are always much more noticeable when a horse is too thin.
Take a look at his front right hoof and tell me what you think. Farrier is working on that one especially to get the angle better, it was less than a 1 but still a little clubby. All the feet were really overgrown, but the other 3 look much better than they did. The one with the clubby tendency still bothers me to look at though.
He was very frightened, depressed and sick when he arrived and couldn't be talked into eating anything except for a little warm bran mash a couple of times a day for a good week and a half. He had a pretty bad respiratory infection but I have a very good vet who took good care of him. He is still not the most enthusiastic eater, but eventually he cleans up everything we are putting in front of him so I think it won't be long before I get him where I want him weight-wise.