Keets are are darling - Guinea Fowl are a challenge - but so much fun is mixed in - get yourself some white millet to use as treats when they get a bit older and then at least you will have a bribe to bring them home when they wander - and wander they will (train them with some call, I use "treat - treat - treat" they will run from across the street across the field - if I can't hear or see them - it is an immediate response, they start yelling then they start running towards my voice).
I have 5 French Guinea's - started with 10 keets 3 years ago and lost half along the way for various reasons. Yes, they are loud, and funny and wonderful bug eaters - I used to have a horrendous problem with Japanese Beetles - not anymore - hardly any to be found now. They chase each other, yell a constant warning if ANYTHING changes in the yard....like... It is summer now and I am wearing shorts, not long pants - AHHHHHHH - too funny.
I am a French Guinea Fowl lover - if you want to learn their way of thinking (I think) you will be too.
Enjoy the adventure!