Yeah thats the problem TnPshow, the cylinder nuts are completely rusted. The previous owner has had a go at them and the bleed nipples. All the nuts are pretty much ground down to a circle, they've been vice-gripped to all buggary. I might have a good go at them but it's going to get messy.
By a 'pair' I mean one front side, well it's $45 per cylinder from Power Brakes and I'd assume another $6-8 for cups and bits.
I'm after the front left cylinders, so if you've got a spare that'd be real helpful.
Regards Chris