Problem is, most of this stuff you can't find retail either. I'm waiting to finish one with 6 amps, and be Sonos or Heos, doesn't matter, and two sound bars, once again, either Sonos ARC or the bigger Denon/Heos. Everything else is done, but the audio part is a big check. Luckily I was able to get paid so far for what I have been able to complete, but I know some guys that have really big checks being held because of stuff like this.