Thanks guys. I'll be ordering the book tonight. While new at trying to rebarrel and customize them, I'm not really new to the C&R game. I've had my C&R License for about 8 years. I haven't really stock piled these guns just bought some when I see a good deal. So far I have acculated 2 K31s, 2 M24/47s, 1 M48A, 2 Hex receivered M91/30s, 1 CZ52, 2 Springfield M1 Garands (1942 and 195something), 1 Winchester M1 carbine. All but the US stuff are numbers matching and select grade kits so I can't see myself tampering with them.
I've been looking at Sarco and think I'll give them a call tomorrow.