a bit concerning regarding no response, I was just about to order a stock for my HW
Steyr LP10, Steyr LP5,
Vintage Collection - Walther LP53, HW77k Venom, BSF S20 Match, Original 35, ASI Target plus lots more
I had a cs600 tyrolean on an 80 a couple of years ago. It was almost new when I got it. Its probably just not a very popular stock is all. The plus and minus is you get a very fixed head position.
Just give them a call on the phone.
I've just bought a cs500 from them and they were great to deal with.
I'm sure they'll make you a cs600
B.A.S.C. member