Make sure the trigger for this move is rooted in the fiction. First, they need to find a buyer and take the stuff to that location, right?
As written, it kind of looks like they can just say, "Okay, we try to sell the stuff," and then roll the dice.
If I was feeling clever, I'd create three distinctive NPC buyers, place them on the game map, and then write a move for each to reflect each NPC's values and potential threat.