Should not fail immediately if its only just started making a noise but needs sorting sooner rather than later.

Its a gearbox out job so lets call it a major. While its out its daft not to get the rest of the clutch replaced as well, very little extra labour time. Problem is these engines have DMF's and they tend to fail eventually, sods law says just after a clutch change and its gearbox out, clutch offagain to sort.

You need to get some quotes.

And don't be tempted to buy a cheap kit yourself and then get a garage to fit it. If the parts go wrong the garage will want paying to do the job again with you trying to get the parts supplier to stump up the labout bill. It might cost a few pounds extra but just let the garage supply and fit whatever is required.