Hi and welcome. :howdy:
I love weird underpowered characters and there is nothing wrong with choosing equipment and skills just for looks and style. Sorceresses are indeed cute with a two-handed sword. Same with a polearm. My Alphabet Tournament sorcie used Dimoak´s Hew (Bardiche) all the way through act 2. Gotta love that look, a weapon much taller than she is.
BTW, nice finds! I have only seen one Shaftstop and one The Stone of Jordan, never a Blackhand Key.