Dipping toe in the water with Google Cardboard

I have an idea and before wasting too much time or money on it, I would like to test one of the key hypothesis. To that end, I am looking to buy a simple room where I can use blueprint to add actions (play a 360 film) to e.g a TV or picture on the wall.

I was thinking if I could buy a sitting room environment with clickable areas, that would do me. This just needs to work with Cardboard using focus and activate to play by 360 film.

Any suggestions gratefully received