If your in the United states your best bet would be acacia, as mhrb is almost impossible to get shipped to the states. If you do find someone who will ship it, chances are it'll be caught in customs.
Acacia confusa is the best bet I think. It also has nmt in it though, so it's going to be different then mhrb is in effects slightky.
Everything published by Gone-and-Back are the mad rantings and ravings of a mind who yearns to be free and thinks he knows what he is talking about. However, these are just delusions made to feel that freedom, because that freedom will never come. Any experiments done are purely figments of the imagination, and are falsified to the highest degree. Nothing should be taken seriously from a crazy mans mind.