A watched mitten...
If I'd started that first repeat right about in the middle of the chart, it would have turned out better. I printed out a couple of charts last night to cut and paste and I think I've got it so this will work out okay.
What's the worst that could happen?
The proof is in the knitting, though, and I've still got a ways to go. With a good head of steam built up, I could reach the tip of this one tonight.