Hi! I just bought Koigu for the first time, only 3 skeins. It's really fabulous stuff. Did you knit up a swatch yet? I was in a yarn store and they had this really long long scarf that was also a tube so you could wear it like a hood and have the rest hang down, drape around you. (know what I mean?)
And I was playing with it, it was stretchy yet strong, really beautiful.
I'd swatch some of it to see how you like it and if it should be lacey or just plain. Scarves sound good though.