Feelers! FS:404 Tubulars

I have a set of 2010 Zipp 404 tubulars, with specialized S-Works tubular tires glued on them. Wheels have about 500-600 miles or use, all races. Straight and true, never crashed. These have been my race wheels. I am thinking of getting a new set of 404 Firecrest tubulars. What would a fair price be? Make me an offer.