https://poultrykeeper.com/general-guinea-fowl/beginners-guide-keeping-guinea-fowl/
Here is a pretty good article, some people have luck keeping them with there chickens, but others say that they are bullies and will even kill chickens. Here is a picture I found on the web.
I am getting some this year, but I have done lots of research. Feed them at night in their coop which gives them an incentive to come home. Also you could try clipping their flight feathers...
I dry the snake skins with salt for a few days, then put it into a jar filled with half rubbing alcohol, and half glycerin (used to make soap). Shake it up twice a day for three days and take it out to use it!