Thanks Valashi, that's helpful - I'll take it back to GR.
However, while I see your point about not being able to send out the cash from the warchests quickly, think about it this way; you can have every nation with over 3,000,000 send out as many offers of 3,000,000 as they can. Over time, this can be replaced by cash from those large warchests. In effect, it's still coming out of the chests, but indirectly, and much more rapidly.
Also, it would be unfair, given the magnitude of the reps, to demand that they be paid within a short time frame, so I feel confident that unavoidable tardiness will be tolerated to some extent.