Hi and welcome to KH!
Yes, it looks like you’ve got it right for all your questions. Reverse the k and p sts on the WS rows, and read the WS rows from right to left. The increase can be a conventional knit front and back (kfb). Since the cable twists are always on a RS row, there’s no change there. You’ll be able to see the columns of knit and purl sts and the cables easily because you’ll always have the right side facing you.
Would you please edit the pattern to leave out the last 10 rows of Shaping the Crown? That way we won’t run into copyright problems.