So its an escort mission for crims.
I like it.
However make it so the final cash is split or something between the escorting players (because if you get 15 grand escorting it with other people, everybody will be doing it, and the cops wont be able to stand against an army of crims in sultan tanks) and this will mean a choice between a low risk low reward or a high risk high reward (go with a group and get little, or go alone and get a lot, but risk not being able to protect and lose everything).