Release bearing worn through clutch fingers ?

Yes schrader valve for aircon refill/ servicing etc , should be a second one somewhere

Identify there size and go to a fastener company, south Essex fasteners being one example

Try Gratech in heybridge

It’s not unknown for peeps to fit clutch plate the wrong way, lots of noises appear from that mistake

Yes if they do their job properly

Perhaps just a poorly manufactured belt, or is this the latest of several?

I remember using two pack araldite years ago, it was never any more problem after that

If the dealer is worth their salt, they won’t release the car back to you “ticking”, it’s a 100+k luxury car ffs

Have you got a straight edge you can test the flatness of that flange with, and the flange on the manifold? Nuts need to be tight, but not monkey tight, or the aluminium can distort. ( but you know that)

Although not 180 degrees out, you can get it wrong so it fires on no.3 when you want it to fire on no.1, but I think you’re capable of overcoming that problem if it arises !

In the photo, the rear door top does look to curve outwards from the join to the top, you might need to take the glass out and give it some abuse !!

Make some tapered washers to sit over the studs

So stylish my dolomite sprint got “rear ended” twice, second time the fan and its spigot went through the radiator, very sad I liked that car !

Put it in 4 th gear and just push/ pull it to line up the timing marks, providing you’re on the flat, ign off naturally