Jeff Rowlands Amp and Dac vs. VAC amp and DAC

Well, used listings for interconnects are a bit daunting, but if you help me de-mystify the field I might be able to pick up something quite decent used.

Here are my questions:
1.) should i try to find a used Crystal Cable to create a synergy with my speaker cable?
2.) should i start from scratch with the interconnect and then use that as a frame of reference if and or when I try other speaker cables farther down the road?
3.) what do you think of these current used cables:

a.  synergistic research tesla series precision reference XLR 4.5 feet $800 
b.  there is a tara labs ISM XLR interconnect for $875 but then in the very next listing a TARA LABS Zero Gold for $8000 (demo). so that is it I am seeing at 875? something very very old?
c.  Silnote Morpheus Reference II for 495

There is this whole combination of things with Synergistic Research (speaker cables, interconnect, etc.) called Galileo -- though the interconnects are RCA, can they be re-terminated XLR or is that a crazy question? And it has bananas whereas I am using spades? ETC. 

Or, any other advice would be so wonderful. Thanks everyone!!!!!!!! You are the best. 

rinpoche I was seeing that cable as an easy relatively low cost way to get you started and listen before you blew big bucks on a pair of interconnects. Also an advantage of buying cables use is the good old audition and flip, buy, listen, evaluate, and resell if the cable doesn't suit. A break even proposition and a great way to evaluate cables in your own system. Cheers!

Gotcha! R

rinpoche;

For what it is worth, I have Silnote IC & digitals in all 3 of my systems - Morpheous in my headphone system, Posiedon in my 2nd system, Posiedon & Orion in my main system. Musical to my ears in all cases, may or may not be for you but a possible consideration. Good luck with the rest of your search