DIY Power Cables Instead of Used

I just bought 500 ft of MilSpec 12 gauge silver plated 600V Teflon insulated wire for $250. on eBay. This stuff is usually for airplane use. I bought a spool with ? 350 ft maybe 7 years ago... used it all up. Time to again start playing. last time I posted about it, the wire got all bought up pretty fast. LOL I really did not want to buy again yet. but if it is there.. Time to buy. Might be none for five years..This stuff is good for power cords and speaker cables.I have a set of ’extension cords’ made up of two sets of quad twist of this stuff plus a pair of ground wrapped in between the quads.From kitchen to stereo.So I can use the 20 amp power for my stereo.

Steve, et all … I've now looked at the link Steve provided, and recall reading that exact post in the past, perhaps 2 years ago (?).  It is very much what I had in mind for DIY configuration, but not nearly as advanced as the detail provided there (just didn't remember all of that!)....now having the link saved, I will absolutely be giving that a go...its just too easy, and just too inexpensive to not try!  ... With the caveat, that I will of course have to do the same with a "quality" DIY cable from either Cardas, DHL, etc., for comparison, and a straight up chord from another company such as Furutech.  I do have the upside of building a secondary system in my basement out of my older equipment, where I can put, and have been putting, what I find not quite to my liking in my primary system.  I truly enjoy seeing the new heights I can take the old system too.  I will happily post my findings here, and perhaps as an additional thread.  Yes, its probably been done before, but it wouldn't hurt to 'unbury' the info with a refresh for newcomers to see....such as myself, with great thanks to Steve.  

@elizabeth 
 I was looking at that stuff a few weeks back thinking of buying some as a present for one of my brothers for Christmas (before this discussion of the VERY affordable DIY configuration, ofcourse). I enjoy upgrading his stereo every year, and watch his amazement that I could improve his audio or visual with VooDoo. He's not an audiophile, but does love his a/v, and is an Electrical Engineer specialized in Satellite Communications and guidance systems...so not only do I love improving the sound he and his wife hear, year after year, but I love watching the thrill on his face when we boot it up, and he plays in front of me after a new upgrade.  Showing him there is more to know than electrical measurements when it comes to final audio output is fun for me, as well.  While I very much enjoy bumping into engineers out here that are audiophiles and delve into the math of it all in a way that enhances my knowledge, it never ceases to amaze me how little a premiere rocket scientist can know about what we hear. 

With that, in case you ever run out again...check out the GSA website...they auction everything government surplus, used or new, to include electronics, wire, cars, boats, houses, etc.  Yeah,,,all of that..  You'd be amazed what the government sells for pennies on the dollar.  

I have made several power cables using Oyaide Tunami wire & either Furutech or Neotec connectors. They are fairly inexpensive & very impressive. The wire can be purchased from VHAudo for around $30 a foot. Connectors can be purchased from him (Furutech) or parts connexion (Neotec) for $40 to $70 a pair. 

I made some power cables using DH Labs Silver Sonic Power Plus and had very good results but it was tricky finding the right mains plug (in the UK) that could accommodate the cable thickness.