Alpaca Wool for Insulation?

Hi there, I'm new to the community and I'm trying to design my first earth bag home. I plan to move in the next ten years to either Wyoming, South Dakota, or Arizona. While Arizona might not require much insulation against the cold, Wyoming and South Dakota certainly do. I did some research on natural insulation and came across alpaca wool, which is great because I already have plans to get alpacas. My question is, has anyone tried alpaca wool for earth bag homes? Would it be more practical to put the wool into the earth mixture, like rice hulls or straw (granted this would probably gum up the mixer), or add it externally beneath a layer of daub, adobe, etc or another layer of bags?
Thanks in advance!