Okay, I did a quick search of your local craigslist. Not a lot there, but found a few possibilities.
In near mint condition. Sounds amazing. Comes with original box.
raleigh.craigslist.org
Very good speakers, but 850 is a bit high. They retail for ~1300 new.
Bought these Golden Ear Aon 3 Bookshelf Speakers Brand New from Audio Advice in Raleigh 3 months ago. Changed my mind and want to go with Tower Speakers. Speakers are in PERFECT condition / zero...
raleigh.craigslist.org
Also good, but again 850. Could make an offer.
I'm selling my pair of Klipsch "The Sixes" speakers. The speakers sound great but are too large for my Desk, I'm planning to replace them with smaller set of speakers. I bought the speakers in...
raleigh.craigslist.org
I don't normally recommend Klipsch, but have heard good things about "The Sixes". Plus they're powered speakers so no amp necessary, but still need the source. I don't know if this is much help for you or not, but that's about the best I found used in your area. I'm curious to see what some of the guys say about these finds. Both the LS50s and Golden Ear Aons are legit good speakers. I'm just not sure about the asking price.