Questions About Bulk Power Cable, Sugestions Needed

http://www.partsconnexion.com/dhlabs_64435.html

DH Labs Power Plus

Very good cable-works well in all applications in my experience. I currently use it (terminated with Marinco male & IEC) on my integrated, line conditioner, phono stage and Blu-Ray/CD Player. 

Preferred it to a number of more expensive power cables including Blue Circle BC 62 and Cardas Golden. 

I'd describe it as being just marginally on the warmer side of neutral. Not dead neutral perhaps, but nothing like the Cardas Golden which was all warm, syrupy and dark. 

I've been through numerous power cords over the last few years, everything from Gutwire, Stealth, Electraglide, Fusion Audio, 6Sons Audio...... and so forth.  Eventually, I began trying different wire with premium plugs ( I prefer the Oyaide 046 and the Iego 8095).  One of the early copper cables I experimented with was those offered by polarwire.com    I used them for both speaker cables and as power cords with pretty good results.  Perhaps you could acquire a short run of a suitable power cord, install your plugs, and see what you think.  The prices are very affordable and you might just find the sound to be all you need.  I very much preferred these power cords with Iego plugs to a Cardas Crosslink power cord.  These polar cable power cords were much more revealing of inner detail and had a weightier presentation while also being more articulate in the bass and the soundstage was deeper, more palpable.  Really, there was no comparison; the cords were in different leagues.  I prefer silver wire but, for copper, these are really quite good and stupid cheap for what you get.  Good luck with your search.

I second hdm, D.H. Labs Power Plus

http://www.ebay.com/itm/DH-Labs-Silver-Sonic-Power-Plus-AC-RAW-Power-Cable-sold-by-the-Foot-DIY-/390...

Not sure why you would want a 40-foot long power cord.  If you are able to make changes/improvements to where you are living, I would recommend having an electrician run  a new 20A dedicated line (10awg Romex) directly from the electric panel or install a sub-panel and then new outlets near where you want to power your system.