His pastern angles are different than his hoof angles. His pasterns look longish and weak, and the hooves upright and small for the horse's size. Hard to tell from the photos, but there appears to be a little thickening the the right fetlock, and and ol cold low bow in the left. Add to all that, the horse is very base narrow, and probably rope walks to boot.
He looks to be a very nice guy, and I assume he's useful at his current job, as he's in lovely condition.
His heart and mind may want to event, but those legs don't.
If he's really a fabulous horse to learn on; lease him for a season.