Well, since I have to run and no one else has jumped in in this, I'll just add this...
I think a longer 'bolt' and a drilled/threaded hole from the left side, with a Delrin tipped grub screw (mutant/veteran style) as well as rear access to the HS nut without removing the stock...… solves this problem. FROM THE FACTORY. Of course then I'd have to buy new guns which would be a problem right now so I'll stick with superficial.... I can drill the stock but I won't drill and thread the action.