So pretty much in my mind how the system would work, is say a player wanted to buy a baggie of Cocaine for personal use, they would go to the Cocaine NPC and the NPC wouldnt have an infinite amount, it would be however much baggies they have been sold so there would be a stock, and the processed drug would be a little more expensive than players sell it to the NPC for to make it realistic so the NPC is making "profit", and players would not be able to sell the baggies back to the NPC
this may be a pretty stupid idea im just high asf and was thinking abt ut
thanks love u guys