Turns out there was enough yarn. Last night, after finishing the front trim, I lengthened one sleeve by a four-row pattern repeat then trimmed it with 2x2 ribbing. That gives the sleeve approximately another inch in length. Perfect.
Also, you can see the back neck is turned under.
Nearing the fnish line with Cinnie has me excited. A lovely, white, lace sweater. What says summer more than that?