I am not a breeder but I have seen my fair share of discus and they are a rather nice pair. Are they proven? Have you seen eggs, wigglers, fry?
The one he keeps petting is a nice shape to my eye. The other one seems very big I noticed somewhat of a hump at the head and the face seemed a bit off to me or almost bulldog like. Do you have any info on that one? Not sure how they will breed out or what your plans are for them, guys like Larry and the others can help you there. I think for the money they are nice, maybe you can get him down to $300?