Wow, thank you so much @Chace and @JimHowell1970. This really does help me. At first, I'm going to analyze what @JimHowell1970 tells me. I think it's true that Shapeshifter has a lot of complexity, although wavetable synthesis is something I want to study in detail. But Plaits is a good starting point too, and highly versatile. The important thing for me is going to be maintaining the balance between a versatile system and the initial investment in modules. I will tell you about my progress and doubts.
Thanks again.
Chace and JimHowell1970