Dennis,
Does that have a slight stepwrist to it, or enough wood to make one? The first thing that popped to mind when I looked at it was the Isaac Berlin smooth rifle with the thumbnails on the buttplate and triggerguard (probably entrypipe, too, but I don't remember). I think Reeves has all the furniture.
With those straight lines, it could probably be made into any of a multitude of Lancaster/York/Lebanon styles - all depends on what your friend wants.
Sorry that's not much help. If it was for the Berlin gun, let me know. I've got the full size drawings around here somewhere. I could dig them up and drop them off next time I'm over that way.
Eric