I believe DMT is never to be sold. i believe this is a moral issue to a degree. but if i have DMT i only share it to someone who is willing to give it repsect, use the DMT nexus, consider the risks and benefits, and be careful whom they introduce it to. also i make them promise to keep it safe and secret and to pass on my ideals.
as for mushrooms, LSA, or peyote i'd give them away with other special conditions. usually i give LSA out with the least amount of conditions. personally i've shared LSA a few times and it felt great!
i love the idea of growing your own source and synthesizing your own chemicals. though there's risks you really and seriously need to consider if you go down that path. especially with synthesizing/extracting. you need to ensure your end product is safe for consumption and such. personally i need to get some of shulgins TIKAL and PIKAL to learn how to DIY my own compounds. but i love this idea combined with a secret drug organization that believes in cognitive liberty. perhaps even a spiritual organization as well; or have a spiritual sub-chapter to the organization in case some people don't feel spiritual about psychedelics.
but i believe strongly that sharing is important. psychedelics imo shouldn't be about stinginess.