Clutch pedal

Clutch going to the floor without resistance means the clutch hydraulic system has failed. If It does not go and can be shifted into gear with engine running, that means the clutch system is worn and needs to be replaced.

So should i replace the clutch set or hydraulic system?

What tools are needed for a clutch replacement?

You would need basic tools such as socket, wrenches, ball joint remover, impact wrenches (a strong bar can be used) for removing the driveshaft nuts. Of course you would need safety stands and a floor jack unless you have access to a car lift. For basic tools you would need to have the correct sizes and for the driveshaft nuts, you would need 32 mm socket. Common bolt and nut sizes are 10, 12, 14, 17 and 19 mm ring spanners. Sockets would help speed up the job.

You would need a clutch disc centering tool or a good eye for aligning the disc when installing. Remember to grease moving parts