Need detailed design drawing for Rivendell bedFollow

I am creating a custom headboard for a bed that is based on the Rivendell design in Part I (Here it is: http://www.moviestuff.tv/bed.html). Since the movie only shows partial views of it, I am in need of more details to finish the design. Does anyone know where I would be able to find detailed drawings of this bed (perhaps in a portfolio of set designs)? Also, who would I request permission from to use the ideas for a personal, non-commercial project?