I realize many people would sneer at a Bose soundbar, but you can get a Smart Soundbar 300 and bass module for under $800, and it is passable for the time being. I also owned a Denon receiver, two Martin Logan towers, a large ML center channel speaker, and HSU subwoofer. This was set up in a similar sized room with 16 ft ceilings. It was taken down due to Hawaiian Electric degrading various pieces. Zaire has better electric power than our 50th state. After listening to the base Bose soundbar with The Joker Blu-ray disc on a 65" Sony tv, I was impressed enough with the sound to keep the Bose connected to the setup. I used to be a snob like everyone else, and would have gotten a Nakamichi if my setup were limited to a soundbar and a mini-subwoofer. (Remember, I always have a backup plan to the backup plan. Most things in life are a letdown from B&W or Nakamichi). Let your wallet and your wife decide. It is very hard to audition any system in a store, so buy from a place with liberal return policies.
