We fall back on the initial 5-per issue. Shops will only accept 5 of each, of whatever they buy. If there are 5 hunters, and each bags 2 critters, and each critter yields 2 pieces of the same meat, 1 hide, 1 blue organ, 1 red organ, and 1 pile of bones, then 2 of those hunters will be able to unload everything except the meat. One of the hunters will be able to unload everything. The other three hunters will be stuck with stuff in their bags until the NPCs unload something, which could take days. That's days of absolutely zero IC reason to hunt, since they are already weighed down with stuff from the last 2 critters they killed.
Meat in particular is a big problem, because it rots. No one wants to go hunting to support themselves, and end up with so much meat that they can't sell, that it rots before they have a chance to eat it.
But Borsail acquires meat, it has a fully stocked kitchen in its estate, and its cook makes food for the staff, the gladiators, the nobles. Fale's kitchens are more modest because they rely on Kadius's kitchens to produce the food for their lavish parties. Oash, Tor, even the Tzai Byn has edibles. But the ingredients for all these foodstuffs are brought to them virtually, by VNPCs and turned into coded goods for PCs to eat.
It seems like a great opportunity to turn at least some of the virtual background work into coded PC activity, with the opportunity to unload some of that stuff before it rots, and get at least *something* for the trouble of hauling it back to the city.
Riev's suggestion was 1 or 2 sids each for raw food, 5 sids for any cooked food. Anything that is "slightly spoiled" could easily be turned into stew and consumed, so any GMH or Noble house that serves stew, should be interested in snatching that up on the cheap.