I'm not sure if it's a bug with mcedit or if it's just how it works but if you rotate the schematics some of the containers disappear(chests,ovens) or their contents disappear( droppers).
The doors are powered with buttons connected to a dropper T flip-flop. So if you rotate the schematic you'll have to add an item to dropper with the red X. You'll also need to replace the comparator coming from the dropper.
When you add any of the rooms to the sewers you'll have to place them so that they overlap. Check the pictures.
Don't forget to download the other blocks, there's about 22...