Question 5: Beech doesn’t know. It’s assumed Jack read the book, or at least part of it. Beech pulled any quote from the book. We see Jack reading the passage to make the quote relevant.
Question 7: Julia is put in the sleeping pod so Jack can pull a Beech switcheroo without Julia protesting. There were 3 pods taken from the wreck. First pod, Jack brought home. In a short aerial shot, you’ll see the second 2 were dragged along with captured Jack & Julia through the entrance of Beech’s mancave.