Use worsted with 2 strands held together to get bulky weight.

I have a 14” neck but CO for size indicated would have been too small for my 36” bust

CO 57
Divided: 10 9 19 9 10
K3 at beginning & end to give a wider front placket that didn’t roll as much
Knit body longer then pattern instructed
Knit sleeves in the round adding 5 extra rows of K stitch to lengthen them.
I like the knit side better than the purl side, so flipping it inside out as finished sweater.