not better off selling to npc when theyr'e ah'ing for 10k a stack ^^ diremitres in pso'xja drop it 80% rate without th they are lvl 42-45 24 pop points 14 min repop .. easy money.
Looking at sell history, it takes about 2 weeks on average to sell 1 or 2 stacks. Much better in my opinion to NPC your stacks for 5k each, than wait 2 weeks for 10k a stack. Quick profit, no down time and you can get back out there and farm up some more.