That is no small task you have taken on! Unfortunately, I don’t have a clear distinction for (or a clear definition of) consciousness, mind and soul. My hunch is that those three words are highly subjective and that whatever distinctions you make between them may have to come with some pretty solid qualifications and/or proofs… just a hunch.
I would defer to our hero in tie-dye, Stephen Gerringer. No doubt he can point you in the right direction regarding Campbell’s work.