If the gun is useful to you as it is now why would you ask this question? You don't want a gun with a stock that is too long for you but is original. Ask this; what would the gun in its original condition sell for in an English gun shop right now? My understanding is that SxSs are going for cheap there. That may be the market when you try to sell it in the future. If you think it is a bit more than you want to spend and the shortened stock is a dickering point, that's another thing. My LOP is the same as yours and I turn away from guns with really nice wood that I will then have to cut a half inch of that nice wood. If someone has done it already I'm in.