You could ask the neighbor/friend to help with your first few culls in case things don't go to plan. I did this and it helped tremendously. We skinned the bird and once the feathers were off the rest wasn't much different from preparing a turkey for Thanksgiving. He only stepped in when I go to close to 'things you don't want spoiling the meat'. If you're uncomfortable with eating your own birds you could possibly donate the meat to a soup kitchen or some similar organization.
For me this was the biggest hurdle to overcome and I'd suggest figuring out how you'd handle the excess cockerels before making any further plans to hatch/breed any significant numbers of chicks. If not you'll soon be overrun with too many cockerels. I have links to some youTube videos on the process if you're interested.