@Them Witches - my goodness, I just checked the BULK price of levorphanol and it's about $260,000/kg!
Now that truly IS insane. It's interesting that if you just glance at the list of suppliers, it seems like their is competition. Then you look more closely and it becomes obvious that Mallinckrodt in fact has a monopoly (they OWN the other suppliers). Given how little is produced, I suspect one batch per year is produced.
I say this based on the fact that the synthetically most similar medicine is butorphanol (which is actually synthetically MORE complex) costs about $50,000/Kg.
I'm so pleased that you have your eyes firmly on making the most of what you have. That's the way to go. The only thing that after 25 years still bothers me is that I cannot ride a bicycle. I miss the freedom. But unfortunately, I also have epilepsy so I can't (legally) operate a powered vehicle. Well, it's unclear what laws apply to E-scooters in the UK but I think I'm a little old to start using one of those ;-) Still, I enjoy the little I have.