Thanks everyone. It will be for my main system for movies. Would not need to do good stereo, just good for movies and TV. My current system is about R25-30k and it's very good. I was hoping to downscale and save a few bucks in the process.
The Sonos Arc is about the price of my current system, so it won't really free up much money. In that case I will probably keep my system.
I'm happy to look at good, used systems, but want to max out at about R10k