50g ACRB....YIKES
With oral dmt, i often find that a higher dose of harmalas can activate smaller doses of dmt. Perhaps if the rue dosage was upped to 5-6g or so you may need less acrb for such a journey...
Speaking of that gargantuan dosage of acrb, are you sure that bark actually contains DMT? I have had Earth shattering experiences with doses of ACRB as low as 1/10 of your dosage... If I were you, I would attempt an extraction on any plant material I was using in order to get a rough estimate of alkaloid content before I took a plunge to god knows where.
To quote a very wise Ringworm: "Everyone wants to trip their face off until they trip so hard that their face falls off." Psychedelics are wonderful compounds and are very useful for exploring and better understanding oneself and the world around them. That being said there is such a thing as too much of a psychedelic (read: overdose). Taking too much DMT has led to nothing but chaotic, overly intense, painful accidents which I could barely remember. You can always go further, but you can't go back.
I'm looking forward to reading about how it goes and wish you all the best on your journey!
'"ALAS,"said the mouse, "the world is growing smaller every day. At the
beginning it was so big that I was afraid, I kept running and running, and I was glad
when at last I saw walls far away to the right and left, but these long walls have
narrowed so quickly that I am in the last chamber already, and there in the corner
stands the trap that I must run into." "You only need to change your direction," said
the cat, and ate it up.' --Franz Kafka