Rhodium plated audio grade wall socket

@kota1 So those Pangea outlets use "gold-plated beryllium copper contacts". Will this make much of a difference? Is this better than Rhodium?

1) I am doing this

2) What does the sorcer do? It's expensive. Could I add this further down the line? I'm presuming I can just put it near the breaker box at a later date.

3) Why the Pangea? I'm in UK so will need UK sockets. But I'm sure I can find a similar quality brand. I thought MCRU was this.

4) I will definitely treat the room. I have bought an Umik-1 mic so will use that with REW to measure the room first. But I hadn't thought of free consultations from the vendors. I'll definitely get in touch. Thank you!

Thanks @steakster .

They also do the same socket in Brass De-oxited, Silver or Gold plated. 

Any thoughts? Or should I just get a normal plug socket.

In the end I went for the Gold plated socket.  https://www.mcru.co.uk/product/silver-plated-audio-grade-wall-socket-2/?v=79cba1185463

I will be running 2 dedicated lines with 2 spurs, one for analogue, one for digital using lorad Supra Cable  http://www.supracables.co.uk/mainscables/lorad.html 

Whilst the house is ripped open during the renovation, I thought I might as well do this now. It then gives me the opportunity to upgrade over time with things like power conditioning, the electronics and speakers themselves etc...

Once the house is done, next stage is room treatment and I'll go from there.

Thanks everyone for your advice.