Just received my Saiga rifle and want to start process of ordering parts to convert it to an AK-47 like rifle. Looking for parts preferences. Carolina Shooting supplies offers kits that have: - round or angled trigger guards. - various types of grips - NATO vs Warsaw stocks (does the conversion require a new stock anyway. Can I keep the OEM Saiga stock? Pros/Cons of the nato vs warsaw vs what came on the rifle? Any preferences or input is appreciated.