Depends on what part of the clutch has gone. It is usually the clutch plate and/or pressure plate and sometimes it is the slave cylinder.
More than likely it is the clutch/pressure plate and I would charge about £130 supplied and fitted but, it could be worthwhile changing the slave cylinder while the gearbox is out because if this goes you would be looking at about £130 again. If you do them together the price would be about £190 as there is no extra labour charge.
Just trying to think what is more economical for you.
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