Setting up sonos with headphones and turntable

Hi all,

I was looking for some confirmation that my potential plan will succeed before spending my money. 

I currently have a Playbar and 2 Play:1 attached to my TV and work really well. I have a separate turntable (denon dp-45f) attached to its own (old) hi-fi system (pioneer vsx-425) and 2 x Jensen speakers and sometimes headphones plugged directly into the amp. 

My hi-fi system is on the way out and the pioneer is starting to fail so I was looking to attach the turntable to my sonos system. I understand ill need a pre-amp and then either connect to a port/five/amp.

Planned sequence would be:

Turntable → preamp → port/amp → bluetooth receiver/headphone amp + wireless to sonos

Now this is where my question is:

 - I would like to with the option of either listening to my records with the wireless/wired headphones OR via the sonos system. 

 - If I set up the port or amp as a ‘room’ for the headphones (likely will use a bluetooth receiver plugged into the port), can I still ask the sonos to play the music through the general speakers instead

 → I wouldn’t be doing them both at the same time obviously

→ That is select the record player to play to ‘living room’ as it currently stands in my house?

I assume I couldn’t have this set up with a Five, because it doesn't have a line back out, just the line in?

I hope that’s clear and thank you in advance for your help.