I suspect they are really excellent pastel calicos that will color up spectacularly. I'd wait at least a few sheds to see the color come in, and then I'd check out the high-end of the price range for pastel calicos, see if your animals are comparable in quality, or even better.
(And then you should sell them to me.)
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Fader is something you'd have to prove out with a few more clutches to claim. But you can still sell them as "amazing pastel calicos, possibly with something else going on??" That's legit. People can make their own decisions about spending extra $$$ on a spectacular-looking maybe when they see the pictures.
Hey, do you have pictures of the parents? Who did you get them from?