Looking For 90% of the performane of the super expensive cables for much less money

I currently have a system which consists of Vandersteen 5A's, THor Audio TP-150 tubed monoblocks, Thor Line Stage and Thor phono stage, Marantz SACD player SA-114 and will take delivery of the VPI Prime Scout with a Sumiko EVOS 3 Cartridge. I am currently using LAT International Speaker Cables, Power Cords and Interconnects. (They are no longer in business). I am in immediate  need of turntable cables and would like to update my new speaker cables and interconnects. Not willing to spend thousands on this upgrade. Seeking to capture as much of the "magic" that the super expensive cables deliver but at a more realistic price point. I understand that I have really good quality equipment, but at this stage of my life cannot allocate mega dollars towards cables.
 Any suggestions would be greatly appreciated.