Once again, you've missed the point entirely. I don't care about any other rares. I need, specifically, Lavian Brandy to unlock this engineer. Lave Station is the only station that sells it, period. They only sell it two at a time, every ten minutes, for a maximum of ten in your hold at once. Therefore, it takes almost an hour just to get those ten. 50 minutes * 20 = 1000 minutes, or 16 hours and 40 minutes. That's not counting the time it'd take to travel between Lave and the engi's base (admittedly not long), which seems small but can add up quickly.