Not bad at all Steve.
Did think of doing that way on mine but limited to the aluminium stock layout which gets in the way.
Also limited on the lack of bedding in and aluminium movement but far from the worst of these types of guns.
Think i know where you got that decent ply from, its the proper waterproof stuff from US.
Nice far better than the horrible plastic but do have a good feel though, must be deformed to use the Anchutz plastic grips.