Scopolamine is know to induce more easily delirious states also than hyosciamine but this last alcaloids is very toxic too.
So microdose is the only way as you mentionned.
You may use datura stramonium or even better but harder to find, belladona leaves in 100Mg. Atropa belladona is know to contain 80% hyosciamine and looks like so far the highest hyosciamus containing plant in alcaloids ratio.
But seeds counts is easy and atropa do tiny micro seeds.
Smell like tea n,n spirit !
Toke the toke, and walk the walk !