Speaker Cables

Common denominator: the supplied biwire stamped metal speaker links are links are crap....full stop.

Speakers cable brands: that is an alchemy between your system dependency vs. Your Personal taste. Only your bespoke personal hands on bakeoffs between  contenders and pretenders can  lead you down the  Yellow Brick Road to Audio OZ

Biamping speaker runs: Dual separate speaker pair runs is one thing, but I severe doubt your proposed standmounts would benefit from it.

Biwiring: that IS SPEAKER DEPENDENT as to whether biwires vs quality single runs with jumpers is better for your system.

My personal experience with my NORDOST FREYs: it mirrors what NORDOST highlights - quality single runs with quality jumpers rule.
I have shotgunned double run FREYs with matched jumpers that bested all  biwire comers in MY system (emphasis added)

https://www.nordost.com/downloads/NorseJumperinstructions.pdf

Normally a single run with a good set of jumpers will do.
Start from there, you may save some money.

G

Great all around cables period Wireworld Eclipse  they checks
all the boxes silver copper connectors ,not brass like most, 6-9s pure copper isolated conductors, and lowest dielectric insulation 
at a decent price Galen carol audio ,I got great deals ad service on them.

I like the single-crystal 5-nines silver ones. About $1,500 on Amazon for for 3-meter pairs. Or, make your own from 18 AWG fine silver wire and 1.5 mm PTFE tubing. 

I would use a set of kimber tc cables with tc custom jumbers a lot of sound for not a lot of money.