Looking for a SPDIF cable from Adiogon

Greetings! I have been using a Kimber DV30 digital cable for a few years and now looking for a definite upgrade. The cable connects my miniDSP SHD DIRAC (love this unit!) to my Gustard X20 DAC (modified by Ric Shultz). The DAC is connected to my Primaluna Dialogue HP Integrated (AWESOME!) via Avanti cables, then to my Martin Logan Summit X speakers via Clear Day cables (double shotgun). I’m very happy with the equipment, but thinking a system of this much investment might need a better digital cable. Am I wrong?

Currently, on Audigon are these cables that I’m considering:

• Black Cat Digit (not Mk 2) $475
• Kimber Kable AGDL $399
• Kimber Kable D60 $260
• Nordost Silver Shadow BNC/RCA $299
• Audience AU24 $364
• Cardas Audio Lightning $300

I can also order an Avanti for $180.

I’m totally new to this and have only had the DV30 in my system for about three years. Any advice or thoughts to help me decide will be greatly appreciated!

Thanks!
Steve