I would say unless you can afford to prove this horse by showing him all over, gelding would be in HIS best interests.
Nothing about him, really tells me that he would do really well in the top show ring; I am extremely picky about conformation, bloodline and temperment. I will let temperment slide some if the horse's conformation is perfect and he has an impeccable show record to back up his bloodlines. However, I don't want something that is hard to handle by any means, he should atleast have somewhat of a stable mind.
"The ideal horseman has the courage of a lion, the patience of a saint, and the hands of a woman..."