Um it sounds like you need two pairs of skis. Get some Icelantic Da'nollies for park, and then maybe get some line sir francis bacons. If you really want a one ski quiver, the line blend or nordica soul rider would probably be your best bet. The K2 recoils are a pretty heavy duty park ski, not for powder, and the AR7s are a bit skinny. Check out the Al Dentes though (henriks new pro model), they won like park ski of the year or something.
Hope this helped! Have fun shredding!