Hello Non Dua Natura,

Welcome to the Nexus.  Sounds like you are already fairly familiar with this place.  .

It's interesting that the materials you are interested in are obtainable from eating or extracting from entheogenic plants.  In USA and other places, there is currently no access, no getting the MHRB over the border.  Thus, folks are looking into other plants and extraction options and also purchasing seeds and beginning long term growing projects of entheogenic plants.

At least mushrooms and the seeds to extract bufotenin from are still fairly easy to access.  .  Unless you already have MHRB in hand you may have difficulty procuring any at this late date.  Probably depends on your location.

Regardless, a warm welcome to you - take a good look around, there's a huge amount to see here.