10A is available from Meyle - ebay the Audi number and the usual suspects will probably have listings for it, or look on the Meyle online catalogue. Apologies Mark - I have thus far not made your shopping list!)
Bolt #12 is 4D0501387 and is no longer available
WTF we are supposed to do without those I don't know. Alas Meyle don't include those with the arms so you may have to order the bolt from one of the online German retailers who can buy from Tradition. In the meantime, I will look in to whether something can be subverted from another model.
I replace all the nuts in that area with standard M12x1.5 nylocs since they are pence and the genuine green ones were £3 each before they also became NLA.