Other models' prices look to be anywhere from $300-$400 on a V6. Of course, I guess that depends on the distributor you buy them through. Obviously I don't have pricing information, but I hope they would be about the same cost as other V6 headers made by Gibson.
By the way:
To all who may read this post, if you say you would be interested, you are not bound in any way to buy Gibson headers. I am just trying to gauge the general feeling on how many people want headers so that I can get Gibson to produce them. Pretty much, I want to say, "Yeah, a lot of people said they would be interested if Gibson offered headers."