Those are the best venues. You could add it to Flippa and Uniregistry as well.
Truth be told, I think you'll be hard pressed to even get your money back on this name (unless it has some history or traffic already?). Such is the case with invented words. They seem clever, and we tell ourselves that when other people see it, they'll love it. But the truth is that someone needs to see commercial value in the name.
No matter how good your vision for the name is, it's only your vision. You need to convince someone else it's worth money.