ML: you can see some examples of repair techniques here
http://www.picturetrail.com/gallery/view?p=999&gid=17090409
http://www.picturetrail.com/gallery.fcgi?p=999&gid=15127852
Unfortunately, it is very likely that your broken wrist is associated with cracks (as in many) extending into the head of the stock, and proper repair is a big task.
You might discuss things with Jim Greenwood in Augusta, Kansas
316-775-0161 http://www.greenwoodstocks.com
or Champlin Arms in Enid
http://www.champlinarms.com/Default.aspx?tabid=28
I'd be happy to provide some other names if you'd like to e-mail me at revdoc2@cox.net