I'd suggest going with: "SECOND- the same as the first version, but adding another dedicated AC wire, and another wall Furutech Duplex, to connect only the stereo power amp". You might hear a significative improvement for the investment of time and electrical parts, but there are no guarantees when it comes to high-end audio, its all system, room set up and power dependent.
Whart makes several good suggestions in his post above.
Whart makes several good suggestions in his post above.