Don't know how much difference is between M50 and M30. On the M50, if you drop the cross member and the sway bar you can lift the engine and the transmission in one piece and it is much easier that way than separating the gearbox from the engine first. The leveler is helpful but not absolutely essential. If you do not have a leveler you just need to hook the chain preferentially toward the front of the engine so the drive train tilts up coming out.
'01 540it, 6/01
'03 325i 5 speed, 9/02
'10 535ix. 9/09
'10 mini 6 speed
'15 mini countryman 6 speed