Although I agree 60 hours is overkill on time, but now lets remember. If the clutch disc alone can be replace so be it, but price out the worst case senario and you have the following:

Clutch Disc -----------$670.00
Pressure Plate ----- $4,127.00
T/O Bearing --------$3,937.00
Slave cylinder --------$543.00
Flywheel -----------$1,377.00

Total Cost of Parts only ---$10,654.00

Sincerely Vic