I think you are wise to consider all three options for your child, especially the speech therapy. It's best to let the pros who evaluate your child suggest the proper plan for her growth and development to increase according to what your daughter can handle.
One of my grandsons is two years old, and he is seeing a speech therapist several times a week in the home. My daughter says he's doing great, and loves to see the speech therapist come. I have a feeling your daughter will be just fine with the proper help and guidance. You are already setting things in motion for that to happen, so have faith she'll be just fine.
((((hugs))))