Thank you for your feedback. Since the video, I have replaced the slave including hose with a new one. I am 99% sure I am getting the full motion, which as you suggested, is the clutch itself. Strange thing is that I am feeling clutch pressure on the pedal like normal operation which I am assuming the pressure is coming the Pressure plate.
Therefore it "must" be the disc got stuck to the flywheel, which is kinda odd in just 2 weeks. I gave it some heavy driving with clutch pedal pressed, which should have released any rust accumulated in 2 weeks.
Is it possible to have the input shaft seize in the pilot bushing?
1971 - 2000 GT Veloce Euro