I had talked with a girl who came for some birds a while ago about helping them process next year so I could learn. I'm tired of giving away roosters. Perhaps you can find someone nearby who wants to learn and have them help you. If this is going to be something you'll do on a regular basis it might be worth putting together a "drill plucker" thing. You can find a video on Youtube. Even if it cost you the $2.50 per bird I paid that's a lot of money.
We processed 4 birds with the Amish around the corner and I paid them $6 a bird and I did the processing and she spent a lot of time teaching me. But, it was really hard on my physically as I have bad tendonitis in both elbows and carpal tunnel in both wrists. So, at this point the pain for the weeks following was def not worth it for me. It was also tough emotionally because I am not a farmer at heart...I named them all. Although, I seriously have two roo's on my poo list and I could wring their necks with my bare hands.