I can agree with that list, and i would leave those guys you mentioned (including Dirk) off as well. Ryno is on his way up. He is proving on a bad team how valuable he is. He is all over the place with boards, scoring, and blocking. While he doesn't dominate in any one area, he is above average in most.
With Davis on this team, i don't think anyone will truly value him correctly (much like West with CP3 here), but he is that good I would keep him in the top 30.