For Moray James you have to email him at morayj1@juno.com
He sells direct. These are very good power cords but not for everyone. They are subtle and do not create dramatic shifts in your system. If you rely on power cords as tone controls, the Moray James will not help you.
Sonically, I'd have to say the Moray James PC's lean closer to the more open & transparent side of neutral. They are not dark and colored like other popular choices for digital equipment.
I'd say that if you have a fairly well balanced system or one which leans toward ever-so-slightly warm, the Moray James could be a good choice.
When I had a Mephisto II, I liked the Shunyata King Cobra - but I have learned a lot since then.
One of the best digital power solutions I've used was a Electraglide Ultra Khan (original older stiff version - not the new ones) coming out of the wall and terminating in an unfiltered power strip (like the PS Audio Juice Bar) then an Elrod EPS 2S power cord running from the power strip to the digital source.
In this situation, the Ultra Khan corrected much of the Elrod harshness and made for a very, very impressive sounding source component. Very dimensional, utterly realistic timbre.