A friend of a friend is selling his WASR10 with some mags for $300. He is funding another project and from what I gathered has a few other AKs as well. I'm pretty new to the rifle scene. I've done some minimal research, though. If this WASR has ALL the common problems, is it still worth the $300? (Worst case scenario) Would it be easy to "modernize?" as in throw on an aftermarket stock, pistol grip, and front end?