The cheapest and easiest combination is Peganum harmala seeds for the MAOi, with Psychotria viridis for the DMT. Mimosa is also not hard to prepare, but due to its high percentage of tannins, it's difficult to swallow and keep the brew in. I've had some good experiences on 3 grams Peganum and 15 grams Mimosa. But I'm considering getting Psychotria viridis for a future experiment.