I personally wouldn't recommend going on someone's property and stealing gamefowl. Some folks value them more than others and you may get in over your head
To add if you don't mind
As a breeder you must hatch alot and cull down or sell the rest to keep the best to better the breed. You don't just hatch 10 then cull 8 at a day old. That's no way to be a good breeder. It takes at least a year and a half better 2 minimum to see what you have. And if...
Who, me, know? I don't know nuttin. Except 50 isn't all that many. At least there not north of 100. Imo hens are more irritating/vocal than a rooster crow. Live and let live.