if you look on ebaybanned they have the auto winding mag for the ak47, but like I said prob is they have the fake bullets. If you could find a canadian retailer to import them for you that would be your best bet.
If your gonna put drum mags on you should go all out and do a RPD or RPK conversion. The first of the two would be interesting as it would be alot of body work, RPD is a more square with different grips/butt. The RPK is a ak47 with longer barrel and different grips/butt dunno what would be involved with turning your kraken into it.
Found the link to those magshere