why would you undo the ac lines? just unbolt the compressor from the engine and rest it on the sub frame.

your system will need a recharge now.

and the 4 bolts are all that holds the frame up. you'll need to support the engine from up top. if the yard your at has a hoist for you to use you might just want to pull the engine and tranny out the top. then separate the tranny from it.