… later on add a DFAM, extend the GM case and add a 49 note MOOG keyboard, or 61 note MOOG keyboard?
thinking the DFAM and GM would be ideal together like that, and with a 61 note keyboard I would never want for anything ever again, I’d delete Reverb/Craigslist, live an honest and humble life from then on
that is a novel idea: transplant the GM into a larger case & add more modiular
not sure how everything is connected inside; it may be possible to just swap the keyboard?
there is a youtube vid somewhere where they rip one apart
I’ve been thinking about getting a 2nd Grandmother. Then getting a 61 note keyboard from Moog .. which hopefully would have Aftertouch I could patch into the filter and/or LFO.
Then I’d have 4 sweet oscillators, one keyboard, all the patchable goodness I’d ever need for the rest of my life 
what about just buying a Matriarch?