Drop Dead Gorgeous Overo Paint Gelding For Sale. Sisco is 4 years old and APHA registered. He is one of the most chill horses Ive ever had especially from his age. This guy is 14.3hh and very stocky built, he can do just about anything needed and had a heart to learn Sisco has no aggression, or hyperness to him. Ive recently been riding him on an equestrian drill team and I was told he wouldnt ...