Mate have you posted this on
Digital goods?
You should move it there since you are going to receive payment with btc.
That is correct. Offers on altcoin marketplace tend to get buried down a lot. Serious Bitcoin buyers are all on Bitcoin Marketplace. You might get a better response from there.
Also,,, it is Black Friday today. Make a good deal on auction maybe,,, set a reserve price and let people start bidding. Just see the rules other people have done and follow it. Then you get fair market rate. And announce it in gambling too.