Hi, Matty,
Sorry to hear about your problem. Can't really help much with the clutch thing, hopefully there are people of this forum with more mechanical knowledge .But I'd like to ask you about your trouble with the timing chain failure, which required engine and gearbox? replacement? On what milage did it happen? How was the car driven and serviced? Are you the only owner of the car? Petrol or diesel? Did you notice any strange noise or behaviour of the engine prior to that?
I've got a 2014 i30 diesel, now already 93k miles, and the timing chain fact always keeps me slightly worried. How long will it last? Should I change it at 100/150/200k miles? Some say it lasts forever, but your example shows - it doesn't. I plan to keep the car running for many many more years to come - want to get at least 300k miles on it.
Cheers!