lookingforsem – Very seriously, I would strongly recommend not going to Benos Chava, etc., as you are too mature (and not malleable enough) for your standard Bais Yaakov Seminary.
How about instead of “Sem”, why not go to the Midrasha at Bar Ilan? It would seem to fit your qualifications.
Barring that, you can try Michlalah (which is also not a “Sem” but does fit your qualifications), but as I understand it they have an extremely difficult entrance exam.
Hatzlacha