There is, but it's not part of the Kickstarter. I can't easily control the delivery to a proprietary ebook reader, so decided instead to offer the 4 day preview to anyone with web access. At that point, the ebook (for every platform, I hope) will be easy to order from those vendors. Thanks!
If it were me, I'd buy the $76 8 pack and then have a friend or another account holder buy the $62 behemoth. That way you get maximum value PLUS you get the collectible that isn't going to be in stores. Kickstarter doesn't let one account take two rewards, regardless of what you contribute, alas.