Do NOT do an overpriced B&W 600 system with only left/right/center. That’s silly. Here’s a complete 5.1 system — including receiver — that’ll wow you for about $3100. Free shipping and a 45-day in-home trial with free shipping back on the speakers if they don’t blow you away. This is great stuff and all on discount except for the center speaker…
https://www.accessories4less.com/make-a-store/item/yamrxa2a-rb/yamaha-rx-a2a-7.2-ch-x-100-watts-a/v-receiver/1.html
https://www.svsound.com/products/prime-tower-piano-gloss-outlet
https://www.svsound.com/products/prime-center?variant=9532387395
https://www.svsound.com/products/prime-satellite-piano-gloss-outlet-1
https://www.svsound.com/products/sb-1000-pro-piano-gloss-outlet
You’d be hard pressed to beat this for the price. If $3100 is too much I can save money on the receiver to meet your budget. Best of luck.