You used to be able to buy Vicmarc chucks from a dealer down under. With shipping the cost was a full 25% less than the Craft Supplies price. Vicmarc put a stop to that and dealers are limited to the range that they can sell Vicmarc products. This is a good thing for us woodturners and a bad thing. The good part is that more dealers can afford to sell Vicmarc products so the products are more widely available. Of course the bad thing is that the products cost more and price shopping becomes less promising.
Good luck with your quest. You are going to love that chuck!