There's a thread
here (Stainless Adjustable Endlinks!!) with a guy in the US who's doing Stainless steel links for the 6. Prices seem pretty good too, works out to around the same as the ones you can get from the Micra... But stronger and adjustable.
He's also doing Front ones too. Awaiting a reply on shipping to the UK.
Might want to make this a sticky.