Cable recommendations for my new (preowned) system...

Interconnects:

I'm a bargain hunter, and I like LOCKING rca connectors, you move something, you may disturb something else..

I bought TWO of these 99.9999 % pure OFC copper Video Component Cables

https://www.ebay.com/itm/122028614401

peeled them apart, ended up with 3 pairs of interconnects, and each pair's locking connector's are a different color. Simply mark both ends of + leg with red tape.

Speaker Cables: I built my own using OFC Cat 8,

https://www.ebay.com/itm/174307181712

pick your length, pick your color, cut off the connectors, strip the eight strands, put pure copper spade/banana/.... connectors on the ends

I used RED and BLACK, made twisted pairs, taped every 3 ft. Order a bit extra length, twisting shortens them some, cut the lengths after you twist them.

(8 x 22awg equivalent to: 13 awg)

https://www.wirebarn.com/Combined-Wire-Gauge-Calculator_ep_42.html

spades/bananas/ ... : caution: pure copper, it could be pure red copper, you want OFC Copper, typical spec is 99.9999 pure. they will have a thin plated finish so they don't corrode. I use the type with 2 set screws, and they need to accomodate up to 8 awg to make sure your 8 twisted strands fit inside.