Would it be at all possible to be able to make gauze out of silk or linen as well as wool? Or maybe even add cotton as a crop to make gauze out of, since traditionally it was made out of cotton rather than wool. And Cotton was available to Europe in the time this game is evoking. Perhaps make it a lower grade healing item or something to compensate for being able to grow it instead of requiring you to tame a sheep?
Also would it be possible to be allowed to use taproot or other kinds of root to make rootfill? Or is the point that the strange root has magical properties to it?