Scroll up - images of people growing hydroponically.
As I think I mentioned, their are some related species of poppy and specific strains that produce no morphine BUT produce a stack of thebaine and oripavine - which one can quite simply convert to oxycodone or oxymorphone.
IF any Tazmanian BLer can get seeds of the 'Norman Strain', that has been specifically bred to produce only oripavine and specifically in the Tazmanian environment. Since their is no M produced, the fields aren't behind barbed-wire fences. If one can grow 37Kg of opium per hectare yielding 1.85Kg of pure oripavine.
Oripavine that according to WO2008118654A1 will yield about 1.4Kg of oxymorphone. Now it's not clear if, like H, acetylation of oxymorphone actually increases potency, but I know 3,14 diacetylation IS around x8 more potent... but I'm not sure if 3,6,14-triacetylation will be an issue.