The KAL officially starts July 1st, but you are welcome to start earlier than that. We have a dedicated thread in our Ravelry group. And there will be prize draws! For more info, visit Shockwaves KAL thread on Ravlery as mentioned before.
Shockwaves is a extra large generous shlanket size wrap, and you'll need 4 skeins of HHF Skinny Singles in 4 colours. Yes they are sold out in our shop, but have you seen our retailer list? We now have over 100 retailers worldwide and Skinny Singles is a popular base that's widely available. I did a convenient google search if you'd like to browse online stores that carry this base.