serialpyro

Good morning all. I would like your opinion on my 200kompressor 2004. I have 160000km and bought it last summer. I did 20000km with it and I have been feeling vibrations in the clutch pedal for some time and sometimes if I do not accelerate enough by releasing the clutch in first or reverse gear, I have a low growl that disappears immediately after . I'm afraid it's my flywheel. But I have seen very little talk of concerns about this small engine. I almost do only the highway with it. All gears are going well, it doesn't spin. The price of a dual mass flywheel is prohibitive for the value of the car. Is it possible to mount a rigid flywheel? Can I refine my diagnosis that it is the flywheel in question? Thanks for your help.