Well, I've taken most of two weeks off to see if the ankle would get better. It did seem to vastly improve, though I still have some twinges. I'm going to drive back for a retry starting at Winding Stair Gap on Friday. Hopefully, the ankle will survive the car drive--they seem as punishing as the trail! I will intentionally go slower with fewer miles if it seems strong enough to start.
Here's a photo album for the previous two sections of the trail: