Worked from the top down and from sleeve edge to sleeve edge in Stockinette & Sand Stitch (a variation on a k1, p1 rib) I would rate this pattern for at least an intermediate for some of the techniques involved: invisible cast on, short rows and a 3 needle bind off.
The pattern is written for 3 sizes: S, M & L (size shown L). But because the body is very generous, the best size for you is based on your height and arm length. If you are shorter but have a fuller figure, the L will be too big because the arms will be too long. If you are tall but more slender (or not), the L will fit better because the sleeves will be longer. Using the schematic will help you decide which size to make.
8 (9, 10) skeins of Illimani Yarn's Llama ll 109yds/100m
10.5 US 6.5mm circular needle at least 47"(120cm) long
10 US 6mm 24"(60cm) to finish the neckline/collar
Thankfully the weather has turned cooler here in Los Angeles because honestly I can't stop wearing this sweater... do I say that everytime??? ;)
Pattern available as a PDF download.