Cgs synth

Several of the CGS modules make reference to influence from Ken's old
Serge system.

cgs26 Analog Logic
cgs29 Wave Multiplier
cgs34 ASR
cgs48 VCO
cgs52 Simple Wave Folder
cgs59B/4xA programmer/seq

I am really interested in trying to clone Serge functionality and I
was wondering if people here recommend the aforementioned modules and
any others??

thanks!