I decanted it from the plastic bags shook out a lot of general dust and dirt and put in cotton pillow cases for storage. I am sure plastic isnt good for storing wool of any sort.
Since Alpaca doesn't contain lanolin it can pretty much be combed and spun right off the bat, (is that a spinning pun?) Washing after spinning seems to be the way most go with it. The combing consists of little more than a flea comb to remove the vegetation, bits of hay and moss etc. I didnt see any actual Alpaca poo when i aired the fleeces off so nothing too nasty to worry about.
mixing the brown with the grey gives a nice blended effect..Lots of twist since its spinning quite fine, least I think it is fine. Not sure experts would agree.
So there we are lots to experiment with, maybe a ryeland alpaca mix?