This plant contains roughly 1.2% DMT/NMT if grown correctly. This means that to smoke a reasonable amount of DMT (~30-50 mg), you would have to smoke 3-5g of root bark, preferably in one hit. That's a lot of anything to inhale, let alone all at once. In my experience, I would not smoke just powdered root bark. This sounds unpleasant, and the powder can actually coat your lungs making it difficult to breath. I wear a mask when I handle this stuff for making extractions since it is so powdery and irritating. It is very simple to extract the DMT out and can be done with a handful of supplies. The high NMT content of confusa makes it much easier to breakthrough in my opinion. It is quite enjoyable.
Consider yopo seeds. These are smokeable right out of the plant and contain DMT as well.
MAOI's are rather useless in my opinion, unless making an ayahuasca type brew. They will extend the peak of the DMT trip but from my experience, they aren't reliable, especially things like syrian rue, as nature isn't always consistent in the chemicals it produces.