You narrow it by sector, geographic location, and time. I had an organization that said "money is not a problem, we'll pay what it takes to get what we want. O

You narrow it by sector, geographic location, and time. I had an organization that said "money is not a problem, we'll pay what it takes to get what we want. Obviously you'll want to make up for opportunity cost and that's fair game. You'll be paid in currency X (non-convertible currency). To make it up to you for this limitation, we'll pay a premium. We want to be able to sell it to clients". Negotiations went on to limit the sectors. I had architected the product so we would be capable to build other products, so it was fine. They had carte blanche from the highest levels of government. The point is, the conversation was courteous and for every one of their asks, they'd add something along the lines of "you'll obviously be compensated for this ask as well" so they didn't even wait for us to feel we were taken advantage of. They were not predatory or haggling, and just showing consideration went a long way in how I perceived them.