Craig, I wish to sincerely thank you for your time and advice on this repair. I would not have even known where to start without your help. I have a decent library by respected gunsmiths such as Roy Dunlap, J. Howe, Miller and McIntosh & Trevallion and none of these cover this type of repair in wood. In fact going through my library I am surprised to find how many pages are devoted to wood finishing and how few to actual repairs in wood.
Here are a few photos from my work. I am pleased with the result. In finishing the wood I will get the new piece to blend in and the mating line to disappear. As a note the CA Super T ultra gap filling adhesive works great. Does not run, requires only a very small amount and has a 60-90 second working time.
My working setup
Careful stock removal
Finished repair
Threaded Mode