Once the engine is removed from the car, you need to identify the components that you either wish to keep, or which would obstruct the removal of the engine from the subframe.
These would be things like:
Intercooler
Intercooler duct
Intercooler fan (and wiring)
Engine Wiring Harness
Engine mount covers
TIK
You may wish to remove other components for additional access.
Remember to disconnect the HT leads from the top bank of plugs.
To allow more access, remove the 2 x E10 bits holding the fuel rail to the inlet manifold.
Rock the inlet manifold forward to gain access to the rear bolts on the manifold, there are 6 x E10 holding the manifold on. A universal joint socket may be advantageous here.
Unplug the IAT and MAP sensor, disconnect the two fuel lines and the vacuum line.
Disconnect he oil breather hose from the top of the throttle body, then unplug the throttle body connection, and also remove the top intercooler pipe.
Remove the vacuum hose from the FPR, and disconnect the vaccum hose from the wastegate to the inlet manifold.
Flip the inlet manifold back over (towards the front of the car), disconnect the injector connections. Disconnect the coils and the EGR valve, and cycle valve.
Once the wiring harness is removed, the 3 coil packs need to be also removed (if you are retaining them), they are held on by 2x E10 each.
Ensure the base of the engine is thoroughly supported, we used bricks to take the weight of the engine.
Remove tie rods which hold the subrame in tension, then undo the main rear crossmember from the chassis rail.
With the engine supported, remove the rear engine mount.
We found it much easier to remove the mounts from the chassis frame rather than remove the mounts from the engine.
This means that you can simply transfer the mounts to the new engine prior to refit.
Now carefully remove the side engine mounts (E15).
Due to the fact the engine has been removed in the frame and supported on the wheels, you will not be able to get enough height in the engine to free the driveshafts, without the gearbox hitting the chassis.
To allow room to move the engine, you can remove the suspension from the top mounts i.e. where it joins to the chassis.
The top chassis is only resting in place now, so you can lift this off completely, or get someone to hold it up whilst the engine and gearbox are removed.