calcium bufotenate is one of those big myths.... forget about that.
My suggestion: Grind seeds to powder, mix with sodium carb and a bit of water to make paste, spread it on a wide pyrex dish and let it dry with help of warm water bath or hairdryer or whatever other method. Then pull 3x with acetone, salt with FASA. Recover fumarates which precipitated, mix with sodium carbonate and water to make paste, dry that. Pull with acetone and evaporate for crude bufotenine freebase, and recrystallize using ethyl acetate if you can get it for pure bufotenine crystals. Voilá.