Go check the pawn/LGS's and find a good "Project" gun. Practice making a stock for it. You ought to be able to find an inexpensive project gun fairly easily that would work. I had a friend years back that made rifle & shotgun stocks, he said there was a lot more to it than most people thought. Back in the late 80's he made a set of walnut stocks for a savage 22/410 I had. Beautiful stocks he made, much nicer than the tenite/plastic ones than came from the factory. $330, if I remember correctly, and that was in the late 1980's. Just an idea to think about.