It's pretty simple.
Spanners to unscrew the hose fittings from the lever and slaves.
Allen keys to unscrew the bleed bolts from the lever and slaves. Allen key to remove lever blade. The master piston may take some persuading if its stuck. I usually put some mole grips over the nipple (not too tight) and pull it out. Either that or a long thin allen key through the hose or bleed hole and push it out. Oooooor attach an air line and pressurise it out. Same practice as wanking - Don't look directly at it!
You cant remove the pistons from the slaves.
Sorry about the lack of specifics with allen key and spanner sizes. Cant remember off the top of my head. I usually go with, "No, that doesn't fit. Yup, that one fits" method.