I'm at work so need to be brief, but I assume you read the discussion of the five qualities you list as personal, on pp.205-229. What did you think were the weaknesses in the argument? If you want to focus on just one or two of the five qualities to keep the discussion within boundaries, that's obviously fine.
Would you agree that the proofs, if successful, prove the existence of something that is other than the universe, even if the arguments for the personal qualities of this entity fail?