Need source for power cord materials

Where do can you get the Perma-lock connectors via mail-order (Mouser, DigiKey, Allied, etc ...)? How expensive are they? I am trying to find the best Belden substitute for the Pirelli Screenflex S2 (double shielded two-1.5 sq.mm-wired cable). I am wanting to make several of the TNT Twisted Snakes power cable designs (http://www.tnt-audio.com/clinica/ttse.html). The TTS design uses three cables in a braid with ferrite beads on each end. There is one cable each for the hot, neutral, and ground. The shields are all connected to the ground at the wall plug only. Looking in my Mouser catalog, the closest subsitute I found was Belden #9418. This differed by having 4, 18ga conductors instead of 2 approx. 15ga, as well as being single shielded. Any thoughts?

http://www.welbornelabs.com/home.htm

you can find everything your looking for at the parts conection/ sonic frontiers or in canada at uhf magizine