I think the original “Journal of the Whills”, i.e. the one from 1973, is just an outline that is a few pages or so in length. It’s mostly noteworthy for the mention of “Mace Windy” and other later reused character names. My understanding is that it’s never been publicly released, but J.W. Rinzler’s book included a photograph of the first page of Lucas’ original hand-written version.
From lost media wiki: