good advice about NOT boiling them. psilocin degrades at anything above 60C i believe, so jsut use lower temps.
alternative to the lemon tek, one could use the alcohol extraction (similar, but with a hard spirit in place of lemons)
the maoi might work, but it seems like a bit of a hassle.
and definetly do not have any other psychedelics for at least a week prior.
good luck and let us know how it works