A single set of high quality speaker cables with jumpers will sound much better than cheap biwire (as seen in your link).
You can strip any piece of wire to make jumpers. Lamp cord or an extra extension cord will do temporarily. Then order a set of jumpers like these..
https://reverb.com/item/15262699-pinetree-audio-crystal-bi-wire-speaker-binding-post-jumpers-9awg-sp...
Or these...
http://www.mazeaudio.com/speaker-jumper-cables.html
You can strip any piece of wire to make jumpers. Lamp cord or an extra extension cord will do temporarily. Then order a set of jumpers like these..
https://reverb.com/item/15262699-pinetree-audio-crystal-bi-wire-speaker-binding-post-jumpers-9awg-sp...
Or these...
http://www.mazeaudio.com/speaker-jumper-cables.html