renault espace clutch?

02 reg espace 2ltr 16 v
other day the clutch pedal was non existant 2 inch from floor and difficult to engage gear. this morning when pressing the clutch it suddenly clunked with no resistance and no longer works. the pipe that fits into the back of the slave cylinder had popped out and leaked fluid. ive been told they are a sealed unit and the whole system has to be replaced meaning the dash has to be removed to fix it. is the're another way to fix it. any help will be appreciated.