I think he's a nice looking little horse, and quite reasonably priced too. He does seem to have done a lot if he's only four, but I would definitely go to see him if he's near to you.
The email given is on facebook and can see photos of him on there along with a lot of other horses so I'm guessing he may have just been a baby to bring on, compete and sell perhaps?.... seems quite nice and v.vsweet, maybe a little overpriced though x