I realise this post is old but for anyone interested, there is an Iboga treatment centre in Bali, run with Australian help. Its called Mulai Lagi which translates as "Begin Again" or "Start Over". Their prices are in my opinion high, but its probably cheaper than the airfares to South america. Theres also several Iboga options in Europe. e.g. Amsterdam. For opiate addiction I'd say you're better off with Iboga than Ayahuasca.