Try googling "SFIC organic melt pour soap base".
They make a base that several places carry.
Is organic base important? It's important to people who only use organic products. I do not know what that % is, but it has to be tiny. I have also been told organic ingredients are wasted on rinse off products vs leave on applications.
With that being said, marketed to the right customer base it could go over very well. The cost is much higher...