Correct A/C steps for filling?

[ps2cho]

This is on my 87 260E, I know you diesel guys have the same A/C setup and most A/C questions are in this subforum...

I am back-converting to r12 FROM r134a as I want r12 performance.

I have a brand new evaporator, expansion valve and R/D. All pipes and condenser have been flushed with a/c flush, the compressor has been cleaned using Ester oil and manually turning and the system is ready to be oiled.

• Compressor 20ml oil
• Condenser no oil
• Hoses: Evap -> Compressor line = 10ml oil, Compressor -> Condenser line = 10ml oil
• Evaporator 40ml oil
• Receiver/Drier 10ml oil

Now the FSM states the system needs 120ml oil. Does this mean TOTAL? Or additional? EG: Once I have oiled up the above places, I evacuate then add 120ml oil + 2.4lbs r12? Or am I wrong?

This is the step I am stuck on and need advice.
Thanks