Q) is one to assume that crushed barley is a malted barley?
A) If you are buying crushed barley from a homebrew shop it will be malted barley.
Q)is this really important that it has been sprouted?
A) Yes- If you want to pull sugars from the malted barley it must be malted.
Just buy 2 row from any homebrew shop and it will be malted barley.