Looking for some cheaper Speaker Cables-$600 or so

I am moving soon and my Kimber 8pr will now longer be long enough. I'm looking to spend about $600 used. I have read mixed reviews on Anti-Cables, and have looked at Mapleshade Double Helix, Kimber 8tc, Nordost Red Dawn etc. I'm lost as to what to go with. I originally was going to upgrade the Kimber to Transparent Super or better but at the moment the cost is too great. My gear is McIntosh MC275, BAT Vk-3iX pre, Von Schweikert VR-2 speakers, Transparent Plus and Super MM for interconnects. In my last listening space I was very happy with the Kimber. Bass was good, depth and soundstage was good too. Sometimes found that the highs could be a little harsh on certain passages. I wanted better imaging and a more extended top end. I will need about 14 to 16 foot length. Speakers are biwireable, cables don't need to be but cost of jumpers will need to be added. Any thoughts and insights would be appreciated.