I would like share my MOD/MOC design of The Mines of Moria. Just like many people, I was not fully satisfied with the set 9473 and I tried to complete the room as much and simple as possible. I tried to use the actual set as much as possible and combined it with ideas and what I have seen from the movie.
I built it on 48x38 plate. I would have gone with 48x32 baseplate but IKEA Detolf cabinets allow up to 48x38 studs and I wanted to use as much space as possible. The design consists of roughly 2330 pieces. I have used 1x9473 door and 2x9473 walls with few modifications and of course with extra pieces. Pieces I have chosen are simple and mostly consists tiles for the floor and bricks for walls. You can easily decorate it using minifigures and accessories from 9473 set. I did not know how to add them either on LDD or Stud.io
I am planning to put it on rebrickable website for probably 3€ so that LOTR fans like me can built their diorama for reasonable price. I am not planning to create a pdf instruction, .lxf and .io files will be enough. I will also share .xml file that consists parts list so that you can order from bricklink sellers.