When I got to the shed this morning I fitted the bolt top and chiseled, filed, and sanded it into position then cleared over the top of the tang and left it for now.
Then it was onto the butt plate.

I marked in the center of the butt and then marked in for a 3/16 cast plus another 1/8 for cant

With the butt plate fitted like this the mount to shoulder will be enhanced and I will have the necesary wood to do the cheek piece.