Thought I'd try my luck and see if anyone had a spare stock for one of these.
It was my first air rifle and the stock was chopped down by my dad so my sister could shoot it. It's only just useable as it is. If I can't get a stock I may contemplate either attaching a piece to the butt, but this is unlikely to look very good.

Also is anyone in the business of making leather piston and breech seals? I think I've been told to just give it a go in the past but my skills don't run to leatherwork.