Full Service Shimano XT RD M8000 Rear Derailleur. Clutch, Pulleys, Springs

Full overhaul of my XT rear mech, after almost 2000 km. How to clean the clutch, the pulleys, the bearings, pivots and springs + how to assemble all parts. What grease to use: My bio degreaser: What oil I used for the bearings: Brushes for cleaning: Bike tools: Torque wrench: How to service the older XT derailleur: