Rigid cases for 10" tablets aren't that uncommon:
here's one example ("Fits devices 10.6 x 0.6 x 7.5 in").
O'course if you want something as near-bulletproof as a Pelican case, you'll be a lot more limited as far as their sizes go (and will probably have to go with their smallest laptop case, the 1075 -- which only weighs about 20% more than the 1065). It's a trade off between bulk and protection.