Old school dura ax brakes. impossible to find. as used by Lance Armstrong in many Time trials. search herein. considered some of the fastest brakes around.
They usually sel for $200 to $300 each since they are incredibly rare and almost imposible to find. Google or ebay them. just brutal to locate, if possible at all.

This is a set which consists of 1 newer edition front which i used on my tt bike las year. works great. only used about 7, 8 times. and then a slightly older pair which i got on ebay but never used. so effectively its 2 x front and 1 x rear.

Yours for $200.00 for the complete set. basically, the cost of just the front, you get 2 fronts and a rear. sell the other 2, keep the newer front and you make out well.