At this point there is no reason for OOO to not just sell all recipes in town at a 3k-4k mark-up from the terminal Basil prices. The whole mechanic of Basil having a short list of random recipes is completely broken by trade chat being spammed nonstop by people offering a port to basil at a cost.
Am i salty about this? Yes. I don't see any reason why someone should be able to sell an infinite amount of recipes at no financial risk.