meadowphisics is ace for polyrhythms, but I guess you know that already 
WW on the other side lets you flash 3 different firmwares on it, each ace on it’s own too… (ww, orca, kria)
it seems you already had quite some inspiration to build your rack, the monome will definitely help to make it more awesome… I’d say, go for it 
re: rene… I guess it would be a good exercise to mimic it… but its strength lies in the hands-on approach I guess… teletype on the other side has just one knob, but can be whatever you can imagine how to convert triggers or gates to cv’s and other triggers… and remote control the trilogy modules is extremely awesome too. very recommended!