Hi,
Yes – this will be fine.
Should be fine. Bluetooth has a good range.
You can mount CIFS or NFS shares, either via Kodi or via the command line. See File sharing with a NAS, media server, windows share or other device for more info.
Yes – this is possible; likewise for USB 2 ports. If you are attaching hard drives, you should make sure they are externally powered or use a powered USB hub.
Out of the box, yes. You can also pass through Dolby Digital and DTS (enable under Settings → Audio) if your receiver supports this.
Let us know if you have any further questions
Sam