Thank you all for your suggestions and sympathy on my dye lot issue. I may have found someone with some extra yarn in the same dye lot on Ravelry--she's not sure but we bought it from the same place around the same time, so I'm keeping my fingers crossed! In the meantime, I've moved on to a new project:
Hmm, not the best spot for a picture, but I'm lazy.
This is the Scoop Neck Vest from Blue Sky Alpacas, and I just have the back and the edgings to finish. I modified it to knit the body in the round, and it's working up very quickly!