Amp, I think the OP bailed, which is such a shame.
Cowboy shows as well every indication of being a beautiful soul, a loyal friend and a level headed partner, and such things are beyond price.
IF you were showing pics of him being used in a walk trot situation, if he belonged to an older, small frail person who wanted a level headed trail mount, we would all say, good on both of them. As a lead rein mount to let little kiddies have their first safe walks on a good old horse, then once again a perfect match.
What is frustrating is that you are lucky beyond all belief to have one of the kind souls of the horse world, and you choose to take advantage of that nature, rather than looking at HIM and saying what is best for HIM.
Believe me, whatever anger and frustration that you feel reading our responses, is magnified may times at this end, where so many people just truly don't understand why you don't get it.