I started working on North Window Castle about two-three months ago, and I've got it almost finished.
The scale is horrible. I've had to remove certain unnecessary rooms and add others just to make this fit. Stairs also didn't line up (some go up instead of down, barracks stairs are tiered above each other, etc).
You can view the project Here
EDIT: Oh yea, I do have a full map available for the castle (at max with all characters).