I agree with TWL's recommendation.
BTW, I think where TWL is coming from is that the Tri-Planer is a high quality arm, that "should" come with a high quality cable. (Perhaps not the very best, but certainly something that is not easily, or cheaply beaten).
I think the thread question you should have posed was:
"Are there any Tri-Planer owners out there that have upgraded their stock cable? And if so, what cable did you upgrade to, and what was the resulting sound like?"
Most of us are merely answering based upon our past experiences with our tonearm cables, and not necessarily with the Tri-Planer cable.
By the way, NICE SCORE on the equipment. I am jeolous!