That would be rare with bantams. Cackle has some really nice bantams. If you go with them, I would order early. They were pretty well sold out of a lot of chicks most of last year.
Not all guineas are that bad with chickens. I have lots of each. If one gets super aggressive, I get rid of it. Just a trio of guineas should range together and generally not bother your chickens much.
I may be interested in the roosters. You might try posting the Guinea pigs in the Afton swap page. Maybe some other poultry pages too. Just don't put any prices on them. F.B. doesn't allow the selling of animals. Do that all by messenger.