Hi there,,I raised 20 Turkeys a couple years ago. I had a mobile turkey hoophouse. It was shaped like a greenhouse with dark blue tarping fastented over the top and open to the ground. We were able to move it daily so they could graze on fresh grass and bugs every day,,and keep the smell down. I will tell you that 50 turkeys in one spot for 3 months will STINK TERRIBLY. I would say a turkey tractor or something you can move would be great,,if you can do it with that many birds. Many years ago I had to take care of my aunts turkeys and horses for about 4 months, because she was overseas teaching school. I gagged every time I went near that turkey pen, it was almost impossible for me to clean it..it was the worst,,Entirely unbearable. Goodluck to you with your turkeys. Your friends will be happy once Thanksgiving comes around.

If they can forage outside it'll be healthier for them. Hope your friends can butcher their own turkeys, that is a lot of work too!