Be a bit more aggressive with it

Worn/ damaged brake disc, or tyre out of round, both of which your mechanic should have seen when changing the hub bearing

They look very acceptable, especially as the condition of rings and bores is an unknown, if it runs well enough for your liking, leave it alone and go and enjoy it !

Bread and cheese hill ? or the one on Essex way ?

Thought the disco sport was ingenum only ?

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)