Commencal meta55 identifying and parts check

Good morning I’ve purchased my son a meta55 to step up to got it for a brilliant price in light of the few things to remedy.

Can anyone help identify the year and maybe confirm some details

Am I right in thinking it’s a 27.2 seat post

The shock mounting bush is it a 12.7mm 8 x 22 (this has excessive play)

And which headset would be correct as this could do with a spruce up.

Can you still get the lockout lever for the older fox float 32rl fork as this one’s split so doesn’t always catch properly or even a remote lockout kit without messing up the rebound dial.

And is the shock a 200 x 51 as I think the pro pedal has developed a fault and it’s possibly as cheap to replace than get it serviced.

I can do all the frame bearings and brakes myself, as well as change cables and so on I don’t have the skills to do the rear wheel service and sort the broken spoke etc so will use my LBS.

Thanks in advance for any help Dave