how many bearings and spacers are needed inside kyosho evolva m3 clutch bell

Hi people I'm having problems inside the clutch bell and how many bearings and spacers do I need insdide the clutch bell.In the manual it shows only 1 bearing inside the clutch bell and one on the outer clutch bell but I've seen on the serpents they use 2 bearings and one spacer inside the clutch bell one bigger than the other and one bearing on the clutch bell.What's the best way to do the bearings inside the bell would it be different for me because I have a kyosho evolva.

Thanks people