Power Cable from wall to my conditioner?


Hello, I have dedicated house lines and PS Audio receptacles for my stereo system.  I use an Isotek Aquarius conditioner that came with Isotek's entry level power cord.  I would like to find a better power cord to serve my conditioner but something that won't break the budget. I want a cord that will not restrict electrical flow and deliver all the open power it can to my Isotek which, in turn, serves my entire system.  My components are:
Old Wadia 581(rarely use anymore)
deHavilland Ultraverve preamp
Bryston 14BSST power amp
Bluesound node 2i feeding a Chord Qutest DAC
Purist anniversary bi-wired cables feeding B&W 802 diamond speakers
The tubed deHavilland serves to "warm up" and give air to my systems overall sound (this is the sound I like).  I wonder, do I want a copper configured power cord for the Isotek, or a copper-silver or something else?  Any ideas.  I understand that many of you may think "you just have to listen and go from there"...of course that is the bottom line.  But my thinking is maybe some of you might have strong feelings about which way to go and could help narrow the search?  Thank you, Jim
pfeiffer
I would take the advice of renting some cables from The Cable Company.  They usually give good advice and have very good knowledge of component matching.   Is there something missing in your system or would like to change? 
HELP....
What component should I start with to replace the power cable?
Preamp, DAC, Amps?  Fuse or cord first? Dedicated breaker and line first ? I’m not sure what step is next. Looking to you experienced audiophiles for answers.
I can’t help with your power cord quest but I would like to ask about your node 2i and the Qtest Dac. I have the node 2i and want to upgrade to a better Dac than the internal node Dac. How much of a difference did the Qtest make. I have a PrimaLuna EVO 400 integrated and Klipsch Forte III speakers. 
@Kingbarbuda What's the point in putting a high end power cable into a PS Audio regenerator?  Isn't that the purpose of the regenerator, to take bad power and make it pure?
Why spend thousands on a PS Audio power regenerator if it doesn't fix the crappy romex in the walls?