just a question, never having seen the gun, and not knowing where the damage is --- but are you sure gluing a couple pieces back on is enough?
The only double (my first - a Sterlingworth) I had pieces come of the head of the stock, needed new wood. I took it to the range one more time with the old wood before starting the project. Turns out another wood silver had come loose inside and lodged near the sear. The right barrel went off when I closed the gun. A 12 gauge load makes a big looking hole in the ground when its right in front of you.