how do you know there's no fuel cost? we don't know how alien space technology works; it might be crazy expensive.
Its a warp drive that bends space and time, Allowing the aliens to gladly pay you Tuesday, For a hamburger today!
well shit, if the ideas are open to the public anyway, who cares if the swine see them? if someone's going to steal your spaceship idea, it won't be a hipforums dumbass.
I fly a star ship across the universe divide and when I reach the other side I'll find a place to rest my spirit if I can, perhaps I may become a highwayman again, or I may simply be a single drop of rain but I will remain, I'll be back again.
alien space ships are cool. fuck money. if you had one you wouldn't need any. (or at least not any currency here on earth. although you didn't say that was where you were typing this from.)