I would do the ... i call it a release bearing but think it has another name... hubcentric slave cylinder or something like,
As they do start to leak after a while, And this will kill the clutch and involve the labour of taking the box off again ,
The duel mass flywheel maywell be past its best too. Has it been changed before?
Clutch wise...
Are you planning to run more power? or happy as things are.
Im asking as if your not then either an LUK or Sache item from say euro car parts or german and sweadish will be fine,
If you plan to chase power... 250bhp and over i would go for a sache power clutch, Its about as close to a stock feeling clutch as ive driven but can deal with more power.