He's probably not going to learn to trust you, but maybe.

I would take off the spur caps and like I said, I'd probably keep him, at least long enough to make some pretty babies.
Those spurs can HURT. When I was a kid we had a rooster that HATED my dad, but Dad liked the rooster. He had been kind of coerced into taking him from a man for whom he was building a home. This guy's kid had hand raised him from a chick but the parents wouldn't allow him to keep it any longer... hmm... I wonder why...
My dad made sure Roger the rooster had everything he needed. One time, Roger disappeared. Dad went out, searched and searched until he found him, brought him home bleeding and scalped of his beautiful tail and back feathers. Dad nursed him back to health. It was a long-time before Roger could go back out. Dad was so gentle with him. I was furious, though I don't remember saying anything about it. That rooster was horrible to my dad. It would jump out of hiding as he walked by (shirtless on a hot FL day), attacking with spurs, claws, wings--for what? This was always his behavior. Dad never got angry. He said it wasn't Roger's fault. He was just a bird.
I expect he was right, but I didn't like the bleeding lacerations across his back and chest. Roger never attacked anything or anyone but my dad, and he had absolutely no provocation for this mad hatred. Maybe your rooster will learn, but ours never did.
So yes, certainly keep him and breed him for his beauty if you like, but don't give him a chance to hurt you, because he will absolutely do it if he can. After all, he's just a bird. Not his fault. Still dangerous all the same.