Tough stave to tiller so just proceed as best as you can. Heating to move one or both limbs is an option-one one way and the other the other way. I have always found lateral moving difficult.
But you can try this method but have the stave on edge and a hook a wire around the tips.
http://traditionalarchery101.com/fixtwist.htmlI usually leave nocks wide and handles full width until at least the final stringing so I can track the string better.
Staves with the string tracking way off like that are tough to tune for silent shooting because of string slap.
I usually turn bows like that around but you cannot because the handle is shaped.
Have fun.
Jawge