X-51 Nether-Rocket X-TREME EU (Q)

Hello guys!

I haven't found anything about this mount so I'd like to ask some questions:)

1.Does it give you 2 mounts? I've heard that it is the X-TREME + the blue rocket.
2. Is it hard to sell it for real life currency?
3. How much money can ask for it?

Thanks for the answers :)