It's been over twenty years so I don't really have a source for the pouches any longer, the last time I saw the guy was four years ago at the Cow Palace. The stock was just an early German G3 stock and has a dated sticker inside from 1968. I cut off half of the G3 socket and removed the spring and guide.
Thanks for the comments. My rifle is an A3 so I have several stocks. Back in the mid 80's I had to get the wood from a guy in Germany.