I would recommend a custom Luna. I am the same height as you and rode a wsd Trek Pilot for four years before I figured out it was too big for me. The Luna is spectacular and fits me perfectly. Margo is wonderful to work with and does an awesome job. If you are willing to wait a few months, it's worth it.
www.lunacyles.com
You can PM me if you have any questions.
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"We don't stop playing because we grow old; we grow old because we stop playing." George Bernard Shaw
Luna Eclipse/Selle Italia Lady
Surly Pacer/Terry Butterfly
Quintana Roo Cd01/Koobi Stratus
1981 Schwinn Le Tour Tourist
Jamis Coda Femme