You could also consider just rebuilding it ... Basically draw the outline of the bow onto a form, and make a form to match the shape of the original.
Then cut off the limbs and grind away the old glass from the riser .... then just use the riser and the form along with some new lams and glass to rebuild it. Hopefully that made sense.
As long as you have one limb that isn't delaminated you can get the shape for the limbs.