1)Simply put a short sling around one of the blade!
(aprox 2.5ft from the blade bolt)
2)hook a chainbock to the sling (small 1/2t is more than anough)
3)hook the chainside hook to the eyeloop bolt of the engine
4)run the chainblock until maximum up
5)then have someone pull gently the other blade down (SEESAW)this will lift the engine out of frame mount
6)turn the rotor to clear the engine compartement
7)run down the chainblock until the engine can reach the work stand
this description is highly simplistic!
So do not worries about weight (the 206 head+blade weight almost 350lb)
Simply think that all mecanical gizmo upthere can sustand the weight of the machine+++add the G' so you are talking probably about TOn's of traction on the head!
I have a photo some were if i ca find it i will paste it hire!
Guy
Sorry english is not my first language!
p.s.
the 206 is one of safest flying machine in the world i do not understand why you seem to be worried about it!(((i consider myself fortunate to not have to know anything about the 206.)))
Surely not the best confortable but it is the CHEVY of the helicopter!