GunCrazy4

I have a saiga 308, and I was wanting to take the sporting stock off and replace it with a pistol grip stock. I have been to the site www.cross-conn.com. That site is very helpful but it seems to be a little more on the side of intermediate gunsmith. So can you just unscrew the sporting stock and replace it with a pistol grip and stock combination. If so what site offers this product and if anyone wants to put there two cents in on what would be the easiet way and how to do it FEEL FREE. Thanks