I have reviewed this site information you provided and I am trying to figure out why you are asking so much and why you have so much invested. This seems like a lot invested for such a site. So the question arises, since you have so much invested, were are the bugs and issues that caused you to invest so much?
I know I won't be able to sell it for what I put into it, when I started the project my specifications were very vague (my own fault) each time I made a revision my freelancer would charge me extra and the costs kept adding up. Also I had the website built on the Coinbase API, but I didn't want to pay the fees or have my funds controlled by a third-party, so I paid another dev to integrate bitcoind for me, adding an extra few thousand dollars to the cost
Most the other costs went to: hosting fees, legal fees, obtaining the EV SSL (far more expensive than I had planned, apparently you need a lawyer to obtain one), paying testers, SEO, and I paid a company $1000 to work on a new UI.
I'm certain I was overcharged by a few people, I don't know how many manhours in reality they put in. My reserve price on Flippa isn't anywhere near $13,000.
