I was going to do the refurb on them myself but have decided against it now. the paint/lacquer is peeling in places and the piston seals are coming away due to a build up of crap behind them. all four bleed nipples are free and can be seen removed in the link below.
The fitting kit (pins and brackets) is included but would advice replacing two of the pins as they look at bit knackered at the pointy end. Parts for these calipers can easily be found on ebay.
more pictures can be found here
Looking for £100 plus delivery
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306 2.1 S16 Tarmac Rally CarProject thread: http://www.306gti6.com/forum/showthread.php?id=143956