Clay,
We ended up entering our DD into K early through a private Kindergarten at her Montessori school. Missouri *does not* allow early entry to K to be publicly funded.
Her school was great, both before and during her K year. Lots of kids above grade level, lots of differentiation.
That said, your daughter will still know she's different. At one point, over a year ago, my daughter and I were talking and she used a multisyllabic word (I don't remember which) correctly in a sentence. She then turned to me and said, "most 4-year-olds don't know what XX means."
She knows. She accepts it. If your daughter is observant, she knows too.
Make sure she's in a place where she is supported, wherever that may be.
