One Cord To Rule Them All

I would talk to Cap over at Audio Envy, ask him to make you a Mega Power Cord. It can deliver 20 amps of continuous power. I think they're about $300. The performance upgrade of using this in my PS Audio Power Plant was a bigger improvement than the initial Power Plant; I couldn't tell you why.

I have two PowerPlants. One is a P20 and I have that fed by a AQ Tornado HC cable I got at a discount running from a Shunyata wall outlet fed by a 20 amp line direct from the breaker box. I also have a P12 which is fed by a Shunyata Venom V2 HC cord to a PS8 which is then connected via a Shunyata Delta NR to the wall another Shunyata outlet as above. The reason I don’t have an even more robust cable on the P12 is because the receptacles on the P12 are close together and I the plug would partially block an adjacent receptacle. I could also use a Shunyata Delta EF cable there. 

As mentioned above a used a Kimber PK10 Gold is a very good cable. Used to use them on my amp going directly to the wall and my PSA P5. Later went to WyWires Silver Juice II HC (High Current) on my P5 and it was an improvement with lower noise floor. WyWires Platinum HC on amps. The Kimber is really good, a little softer presentation if you want to mellow your system a little. Pretty sure the Kimber is not shielded so keep clear of other cables. Very flexible cable too. Later version have black Techflex jacket and look nicer than the earlier green jacket.

What Mitch said. Worry about the outlet power to the regenerator. A big gauge cord is more than enough. My furman is plugged into a dedicated 20 amp circuit with an audioquest nrg outlet. I’ve got a regular pc. I test it with an rf tester. It’s dead quiet. 

You are asking for 5 amps continuous from the mains.  That is really nothing...

Any cheap 14/12 AWG Romex wire will do it with flying colors.

Do not fall for the typical ridiculous power cord claims which charge equally ridiculous prices.