I think I'd find the back on each stave and reduce them to a bow blank while they are still green, especially if you intend to correct the straightness or induce reflex or whatever with heat. wet wood responds to steam heat very well.
find your backs, seal the back and ends only with shellac, make corrections, then let them air dry out of the sun and wind for a few months. at that point, you can start force-drying them toward the moisture content that suits you.