You would need to:
1) carefully remove leather grip
2)trace the bow out onto a sheet of paper or plywood (template)
3) make new form according to template.
4) chop off both limbs an inch or so past the end of the fades of the riser.
5) carefully grind off all glass and original lams from riser
6)get new lams, and glass of appropriate stack thickness.
7)build new bow on old riser block, tiller, sand, finish, etc.
Most importantly,
8) reapply leather grip.
So it's possible, but probably not realistic.