I can only imagine how difficult and emotional it must be to have to decide which pups to keep when you love them all so very much, but I think it is absolutely admirable and wonderful that you are giving so many people an opportunity to have magnificent hamsters in their lives. I am sure that your friend is thrilled to soon be getting one of your beloved hamsters. I'm sure that Louise will be very loved, and it is wonderful that you will be able to get updates and pics of her, too.
Hugs to you, Fluffagrams.