Ah, I see. Sorry, I'm not really on the unlawful pirate side of things...and never had CARGO demanded of me trader, just 2mil.
One alternative is the Transport/Large Transport? Even though they're sold as lawful, they're fairly ubiquitous. A staged event with Synth-foods might even get you a couple of hijacked ones (don't know how many you'd need).
Either that, or possibly a BW Transport, sold on FP9, might be a way to go too, although the blue color is distracting.
