Managed to sort it all now. Need to sand lightly and then paint the rear left wall part but cut a strip out then ran some trunking and put the cable in. Pretty much all done now bar some cable tidying in the cabinet, although not like you'll see them anyway.
Spec is:
Sony A95L 65"
Sony Bravia Quad speakers
Sony SW5 subwoofer
Zidoo Z9X paired with a DAS drive with 5 x 10tb WD red disks.
Sky stream
Bravia quad control box.
Happy with how it's all turned out to be fair, so is the wife as all blends nicely and still feels like a living room.
If you scroll to the final picture, you'll see a before photo with me testing the quads before all the work started. I bought them a while back as I managed to get a good deal on the speakers and TV (£1700 for the quads with the cashback and discount I got). Also managed to nab the Sony A95L for £2600 and got both from Richer Sounds so have the peace of mind 6 year warranty and don't plan to change anything for as long as possible.
Yes, I had wall changes and could have gone down the AVR route but to be honest, the quads are actually very good and against some things I demo'd that were even three/four times the cost, I still found them more immersive and kept within the budget which was the main thing while also keeping the wife happy.
Cheers.
Spaghetti junction be gone. Added in a isolation pad as well just to help with the hard floors.