i think you could make this with tunisian. when it gets the the split, you could keep working half the stitches until both halves are long enough and then start stitching across the entire piece again at the other end.
Ravelry: Top/tank *FeelGood* pattern by Birgit Freyer. Pretty, light, perfect for Summer. Lots of lace weight yarns at DTK!
from Maglieria Italiana - 177
Ravelry: Estuary Tank pattern by Amy Christoffers Ttat knit along