Which inexpensive speaker cables...

Too bad about the Pine Tree Audio cost.  Great cables and customer service.  Suggest Blue Jeans cable.  They can customize to any length and type of connectors.  Both companies have excellent customer service and are US based.  

I would check out Audio Advisor or The Cable Co. They have many choices available under $200, like Analysis Plus, Audioquest, Kimber and Cardas.  If you subscribe to Audio Advisor or Music Direct, they both will occasionally offer significant discounts on these quality brands.

+1 Performance Audio. 

Mogami or Monoprice or Blue Jeans have speaker cables in your price range.

All the best.

Canare 4S11