Somewhere under 7$, but i would hold on to it just in case.
Anywhere between $10-$15.
I'd say $5 - $10 depending if you find the right buyer.
I'd pay $5 for that, nothing more nothing less.
You might want to get some stats up if you're going to sell it. Even with the 10M, it wont get you much. Train it some more first, and then sell it.