Audio Advisor sells Audioquest Rocket 88 speaker wire that they terminate. The cost is about 1/3 less than buying the AQ version. It does not have the 72 volt battery pack on it. Oh and it goes on sale from time to time.
As far as interconnects, I usually get what was hot a couple of years ago at half price or less. Check out Music Direct. They have a selection to choose from
All the best.
JD