The ones I used for those numbers in the review?
They are $600 on Corsair's site, and $580 @ Newegg.
But they don't work quite right on Haswell, and I need 1.725 V for stability with the XMP profile. That's higher than I like for 27/4 use, so they sit in their box and I pull them out from time to time for testing. I'd send them in and try to get them replaced, but as mentioned, Corsair seems to not get my emails, or is ignoring me on purpose.
I'd love to hear from them, actually, their new ram looks great, matches a lot of boards for Z87. Without kits in hand, however, I'll have to recommend the kits I do have, and that's just one Corsair kit, that doesn't work as it should.
It IS worth noting that my kit was one of the earl kits, that didn't come wit ha fan. If you buy a kit today, it'll come wit ha fan. That might be why my kit has seemingly degraded since I got it.