Seattle, Washington - gotta figure pretty fair humidity there about now. Had it been Idaho in January it may not have turned out so good. Would love to see pictures.
My thinking on old bows is this, an at least as good or better replica can be had with little expense and the one thing that cannot be replicated is the authenticity of an aged piece of our craft. Would be a shame to lose it, simply for want of a similar bow to shoot. Sure, rehab it back to working condition and shoot it some, but have another bow for every day use.
Would love to see pictures. Might consider an authenic finish for the refinish job. Probably would not be too difficult to determine what was used.