Laurie, I know this must be a roller coaster of emotions for you. Give her lots of love in her last couple days with you, and reassure her (and yourself) that her move is to a happy place where she can be the center of attention.
I'm so glad all this worked out for you. I know you will miss her so much, but she will be in a good home. And with Mary Anne and Myste so close, you have a great safety net in case it doesn't work out.