Frankly, I feel like black market trader should be like a seedy back alley part of the general station area. Maybe have the entry way sort of "hidden" behind a row of terminals.I'm hoping the bartender thing is a placeholder rather than the default mat trader. Maybe one or two characters who are shady bartenders that trade under the counter, but as a standard practice? "I'll have a Lavian brandy and a pound of epoxy please." Pretty weird.