Thank you Wendy, Marney, Shetha, Lisa and Melissa for your suggestions on the stocking pattern! Turns out that yes, there was a bad bad typo in there, and the 17 stitches for the instep should've been 27. I did that, and it worked out just fine. It's not blocked and I still have ends to weave in, but check out my friend's big-ass stocking! If her husband gives her a woman-leg for Christmas, it'll fit in the stocking!
Now it's happily blocking in the livingroom. Ryan wanted to add something to the pic to show the scale, so that white rectangle is a standard-sized credit card (upside-down, so don't bother trying to get the numbers!)
Now I have to make her husband's, which will be the same except green at the top, heel and toe.