Cleo sure is a handsome boy! i hope you can keep him. As for crowing, ite really depends on the individual, some crow often, some not as much. The bantams have a different timbre to the crow--one of my friends has a Sebright and he sounds like a rusty hinge on a screen door. I don't think its as annoying as the deep throaty crow of a big boy, but thats just me.
When we hatched a roo, I told our neighbor and asked if he would let me know if he was irritated before it became a problem. He paused and was 'hmmm, you have a rooster...' so I didn't expect him to last long. I also put soundboard up in the henhouse to muffle the noise first thing the the morning. I called the neighbor and checked back months later to check his disposition and he told me he found the crowing charming and it reminded him of growing up on a farm. I suspect if you take basic steps to mitigate noise first thing in the morning and are up front with the neighbor and let them know they can talk to you about their reactions it will go smoothly.
