I believe something like you said would be possible. But i think we need to start something like this by our self, the government will never support this. I don't think they would directly stop us, doing this.
They will try to stop you from opening your mind! My Uncle actually attends one of these 'centers'. It is an Ayahuasca 'center', in which people meet every 2 weeks on Saturday to drink Ayahuasca. It is legal for them to do so. The head guy has to fight with the government and spend millions of dollars to legalize it for religious purposes. The difference between this center and the ones I was describing is that you have to be a member and the group is very very close. I think this is good, you don't want anyone just walking in, drinking Ayahuasca and going crazy and sending everyone else into a downward spiral to hell. If these centers were set up, there would have to be group, where everyone is close and good friends, or else it would not work. I believe they have an Ibogaine center in Vancouver, BC. It is more less for Alcoholic and opium attics, but you can also go there for spiritual purposes, and it is a one on one session with the people running the center.
PEACE & LOVE