Looking for a keyboard case

I'm trying to find a Zagg Autofit 8 inch case at a decent price, as this seems to be the only keyboard case available that fits the K1 tablet. I can't seem to find the 8 inch version below $90 or so, which is kind of absurd. It's especially frustrating seeing the 7 inch version go for $25 on eBay. The 7 inch version can fit tablets up to about 7.8 inches wide, so I'm wondering if some light modifications to the case would get it to work with the K1. Or is the 8 inch version so great that it's worth the $90? Anyone have any experience with these or other cases, or other keyboard solutions for the K1?