This is the pattern I have chosen, which I purchased over a year ago from "eva dress". It is based on a design that Katherine Hepburn wore in "Christopher Strong."
It is a 16, which will only involve some minor size alterations, mostly in length and hip. I intend to do version A, but do not know if I will do the hat.
For fabric, I have a piece of wool plaid I purchased on the Isle of Islay during a vacation in Scotland. I believe the pattern is titled "Lord of the Isle" I need to buy a matching fabric for the skirt/dress and lining, and buttons - which may end up as covered buttons.
Reading the instructions, it appears that the dress was not intended to be worn without the jacket. After the mock-up, I may choose a contrasting fabric for the "underbody" so that it will stand by itself.