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.
Coat Tutorial for Crochet, Knitting, Crafts.
Moss Green Alpaca poncho - a long rectangle, wrapped around and joined to form neckline. Pick up stitches at neckline and knit about rows in the round.