you'll never get it will you?and for your education, a DFS is...

you'll never get it will you?

and for your education, a DFS is never actually "definitive", it's so called to meet the needs of the company conducting the study.
The only thing that eventually matters is the BFS.

In any case, would you pay $20m for a second hand DFS? The Saudi deal for whoever gets it is likely to be a very expensive though profitable venture (so long as the Saudis don't stick their hands in the till too much) and you'd want to be very sure you haven't bought a lemon, so you'd be checking a lot of things for yourself. Wake up.

end of conversation.