Elektor Formant Modular

Hi Folks,

Greetings from Brazil !

I have a Formant based modular . It's a very good instrument. I am 
rebuilding it now, adding more modules and a new wooden case . 
I have book 1 ( basic book , in english) and book 2 (more modules, in 
germany).

I know there's a third book called "Formant 2000" . What kind of 
circuits are there ? Is it a good buy or not ?

I'll post some photos of my modular soon.

Thanxs a lot !

@ugusto