How much would it cost the UFC to put together this card for UFC 209?

Nick Diaz:

Nate has taken everything I have worked for.

Nate Diaz:

In order to be the leader, I must beat the leader.

#StocktonCivilWar

Gil and Jake would be taking sides and fighting too.

Would the Diaz brothers ever agree to it for a McGregor-esque payday?

Would the grotesque nature of the card bring in big PPV numbers?