@wilson3 .."as I do feel really blessed to have finally found such a great sounding system"...
What cables are you using now? What’s not working for you now? Your speakers are $7k retail, right? Best to answer member @spenav ’s question first to get help.
Depending on what guidelines you follow, i.e. 15% is just over a grand on speaker cables. If you are looking for a simple baseline, sorry, the HomeDepot zipcord gimmick is unshielded low grade twisted copper with no dialectric, junk, sounds grainy, unresolving, a total waste of time and $ imo. If you have nothing now, you could at least start with Cardas 101 speaker cable for $6.75 per foot as a baseline test. They can’t make the stuff fast enough. A cheap start option. Keep speaker cable length short to save $. Perhaps you can reveal your max budget first if you don’t want to send yourself and others in a tailspin asking general synergy questions.