Saying no, or maybe not!

Last week a woman contacted me with an offer, it seems she stumbled onto an old ad of mine when I was looking for some bantam hens. I thought I had deleted all my ads when I was given Gracie. I had wanted to buy two or three bantam hens as company for Chico and also to have some chicks in spring. A man gave me Gracie and so I stopped looking. The woman is moving to the city and has a young bantam rooster/hen pair, they are her pets and she wants them to go to a home that will keep them as pets so she will give them to me. It is hard to say no to another bantam hen but my problems are 1) I worry about another rooster with Chico, I don't think two older rooster will ever get along and I don't want Chico to get hurt, and 2) my hens were very slow to accept Gracie, she still lives in a protective cage as she is smaller. Her cage has a low gate that only she can crawl under, she can come out to perch, get treats and run around but if she is bullied she knows that she can duck under the gate and no one can get her. While in the cage she still has full access to food and water. I don't want to have to start all over with a new hen now that the flock is finally meshing together, especially with one bantam hen coming into a flock of larger hens, if they get the chance they will kill her. I think I have to say no for the good of my own flock but then I would hate for the little hen and rooster to go somewhere and get killed, plus I saw a picture of the rooster and he is pretty. I love bantams but I thought if I were to get more, I would get two or three so that one is not always picked on like Gracie was. I'm so confused, it is hard to say no to the little hen as she is only a year old. I'll have to think more on this...hmmmmm.