I decided to do a look 4 less version of this outfit, and to start you'll need a deep v grey sweater like this one from Forever 21 for $9.50. (Click here or here for some alternative options.)
I found this similar skirt from Topshop, although it's a bit shorter and a different material I think it will work just fine. It retails for $65 - click on the photo for more information. LOFT also has a great option for $59.50 - click here to view (thank you to Katherine for posting this in the comments!).
And finally, you'll need some accessories to complete your look such as a fur clutch, slouchy boots, and a wide belt. Click on any of the photos below to purchase - I also included a few alternative options.