Replying to Look Pivot 14 Racing

I'm looking for a pair of new bindings and stubled across a pair of K2 skis (nothing special) mounted with a little bit older, but still modern Pivot 14 "racing bindings" for really cheap and in like new conditio. I'm thinking of buying and selling the skis without the bindings and I'll pretty much break even or close to it.....so almost free bindings. Anywhoo, would this be a wise buy? I've been looking to upgrade from my PX 12s to the pivot heelpiece. Is there a difference between the race version of the bindings or are they all the same? I've looked at Looks website and found nothing.