Selling Leo Vince Ti Exhaust System Question

First time poster -- hello everyone.

I just bought a 2004 VFR ABS that was lightly modified -- double bubble windscreen, rear fender removed, and... a slip-on Leo Vince Ti Evo II exhaust system added about 1000 miles back (a year ago -- the guy didn't ride it very much). Looks great, just barely getting a fine layer of carbon. Sounds very nice, too, but I favor the stock look and sound. Luckily, he kept everything, so I'm going to have the original exhaust remounted.

Question -- what would be a fair asking price for a lightly used Leo Vince system? I see that the retail was about $750. I'll probably list it here and/or ebay. Anyone have an idea what these fetched new? I understand the Ti version is no longer available. Is that good or bad? Anyone out there interested?

Thanks for your help and advice,

JB