When I worked at the Butler Manufacturing company, ten years ago, many of the senior managers had offices that had a conventional desk, chairs and coffee table. However, their offices had an anti-chamber off of this dress office that they did most of their work in. It was relatively narrow and set up with files and standing desks that they and their secretaries could access separately. I never had this set-up but my boss, the President of our division, liked his a lot. It did two things, it a allowed him to work in either office, but it kept 95% of the clutter out of any visitor's sight, and it had the benefit of standing to work when he wanted. I don't know if anyone else mentioned it, but both Thomas Jefferson and Winston Churchill used to use stand desks for reading and writing. Their desks can be seen in both of their libraries.
NEVER take on a vast project with a half-vast idea.