...unknown amount of humanitarian aid
Ah, I did forget about that...
Very difficult to achieve with the kown loads. I remember that even if you had the rear cabin full (~100 pax) and loaded all the bags that could fit in the rear hold, the bags that remained (~50%) loaded in the front brought the CG to within limits. It only started becoming tricky with a full payload and a light fuel load, where CG was getting close to the front limit, and with the graph being V shaped it moved even closer as fuel was used up.