I'm a Craigslist fan for this reason. Just have to know what items you want and have patience. Try to match the front 3 speakers if possible. If you're looking new there are plenty posts recently for all price ranges that could point you in a good direction.
Denon 2113, Klipsch RF-52, RC-35, RB-61, SVS PB-1000 Chicago
I just got 5 Ascend's including the stands from craigslist and had been watching the listings for a while until this deal came up. So research what you want and keep looking til it comes up. Good Luck and if Dan is reading this Thanks.
The Elusive 1099 (L/C/R)---DIY Volt 10 (surrounds 9.4)---SVS PB 12 Plus---SVS PC 12 Plus---2 DIY 18's sealed--AVR Denon 4311CI---TV Vizio 70---110" Motorized Screen---Epson 8350 Projector---Unraid 32TB Network Storage---Gateway SX 2370 HTPC with 120 SSD