Interesting post. I see a few things that don’t fit in your over/under.
I think the 40 points per game seems about right. But, 1100 yards is less than 400 yards per game. If we score 40 points a game, I would think that we would average over 400 yards per game. If we have 850 yards passing per game, which seems about right, it would mean that we would average less than 90 yards per game rushing.
So, I would not bet on points, over on yards, under on sacks allowed. I would not bet on much on your defensive numbers other than I would probably bet under on points allowed.