Grumperina's Tivoli and Picovoli tees are modeled after the ballet pullover, and she gives instructions on how to modify it for long sleeves Here
(click on the approrpriate link at the top). She hasn't tried them out, so they're purely theoretical. I was thinking of trying option #2.
Guessica: do you find that you have a lot of fabric bunching up around your armpits? Or do your armpits feel like they're suffocating at all? If I can get away with just knitting a tube (with decreases), I'll do that--less of a headache. I just don't want a bunch of fabric all up in my armpits.