Is this a package deal or are you looking at three different sales? As 2 said, look for the two stage clutch. The tag on the dash or the whole dash may have been changed so I always go by the feel of the clutch pedal. Once the pedal is about half way down, you should feel increased pressure as the second stage is engaged.
Inspect the hydraulic top cover under the seat carefully for cracks. If the lift controls are not set up correctly and the relief valve doesn't blow, either the top cover or the hydraulic cylinder can break. You can test the hydraulics on a dead tractor by blocking the clutch pedal fully down to the running board, put the lift quadrant lever in the up position, engage the PTO in the 'engine' setting and then spin the PTO using a big socket on a drill. This will spin the pump and the lift arms should go up.