Elite box CANNOT be stacked, this would make botters able to gain a Insane amought of Box if they arent found by Justac Team..
Management of what you want to prioritize is a good idea.
You can also log another char and trade over the Box there when you have a certain amought. That way you can keep your stackeble items on your farming char and uniques.
(just an idea, thats what i do)
The only thing I see that could be added is the Temporary Inventory from CC, which isnt linked to your regular Inventory and wouldnt allow Botters to use it as storage, but it would cost CC and player would probably wont like it at first
Hope you understand.