I read your other threads. I think it's wonderful you had the chance to vet check him. You wouldn't have known otherwise and unfortunately the horse world is full of very dishonest people who will sell horses whom they know should not be sold or try to make a profit or get their money back on a horse isn't sound.
Keep searching. I have no doubt in my mind that with the market being what it is and with the amount of horses that are up for sale, that you shouldn't have any problems finding the right horse for you.