[notahacker]

Do the governments and MNCs approaching you perceive you as working on their behalf? Are they willing to disclose a maximum rate they're willing to pay, or is there a reasonable "rule of thumb" estimate you can use to start off with?

If so, negotiate the lowest possible rate with your suppliers - who could get more similar work from you in future - and tell your government/MNC that you have one or more parties willing to do it for $xxk, and your fee for arranging everything is $xk. You'll put them in touch and walk them through the process of actually hiring the drone everything after they've accepted your $x fee.

Congratulations, you're now a drone charter broker, possibly the world's first.