Bump and double post. Don't download the interior until you've read the instructions.
This is an interior that functions as a blue print. You can replace the textures with any image you want, in fact, I would recommend it, since the ones I used are very low quality.
To install it, extract it, then put it in your interiors folder.
In order to use this, spawn it using the mission editor in slate, slide it where you want your build, move it just under the surface of the building slate, and then relight the mission by pressing alt+L. You may need to rescale or move the interior.
Once you have it positioned where you want, build.
Once you are done building, save your blocks, and exit the server. Start the mission slate again, and load your accurate re-creation of a building.
Here is the download:
http://www.bjwaymods.net/uploads/blueprint438604256.zip