CDNN has synthetic stocks for Interarms, Charles Daly, Remington 798, etc. for $39 right now. I bought one to try a homemade camo job on it. They are made by Butler Creek. The recoil pad has the Charles Daly name on it. Here is a link:
http://www.cdnninvestments.com/inmkxstacbls.html
http://www.cdnninvestments.com/inmkxstacbls.html