Ok, here is what I was thinking (for what its worth;-).
If I had both wood available I would make a 66-68″ Møllegabet bow of the Hickory stave (these have pronounce thin, stiff outer limbs and wide inner limbs and stiff handle).
Yew is wonderfull for all designs (imo), but makes especially beautifull recurve/reflex bows, so a bend though the handle design with slightly recurved tips. You can make this shorter…60-64″. The width of the bow will be dictated by the quality of the yew available.
Have fun what ever you choose;-)