If you have the space for them to roam consider a small flock of them they have strength in numbers and produce a lot of eggs if you can find them. mother earth news has a good article concerning guinea fowl.
I read that you can pinion their wings at one week of age this involves cutting the wing completely off at the first joint be advised this could be detrimental to their ability to escape from predators
I rescued a keet from the trash at work all its siblings perished while being shipped in February we thought it was a chic at first and didn't realize what grace was until a couple of weeks ago. I'm keeping her in a large covered pen outside next to my snaplock coop one of mr barnevelders...