[bazar01]

Plan on dropping the engine and transmission as one assembly.
Then separate them on the ground.

To separate, you have to unbolt the converter from the flexplate thru the starter hole. (step 2 in your diagram). 8, M6 x 16 bolts.
Secure the converter using the special tool.
Unbolt the transmission box (bellhousing) from the engine.
Separate the engine from the transmission.
Leave the special tool attached when you put the transmission aside unless you have to perform some work on the transmission.

During the engine transmission assembly, install the special tool again.
This will keep the converter from falling out from the transmission pump to prevent damage if it falls out of place.