At the end of the day, it depends what @233 is prioritising - experience vs quality.
A wireless 5.1 soundbar system will give you a great experience for £1,000 but not the best quality.
It sounds to me as though you'd favour a better experience.
You have 2 options, in my eyes:
Sonos Beam + 2 surrounds + Sub Mini
or
Samsung Q930B
Daft question is the Sonos kit all wireless ?