You definitely need Suki in your life! This sweet little cardigan is knit in Rowan Softyak DK and we have made a some kits!
The kit contains the Softyak DK yarn for your size and the pattern download.
Calls for 3.25mm and 4mm needles, but you must use whatever needles allow you to achieve gauge.
Kit price is 10% off the cost of the yarn and the pattern is free!