Today I have the two portable cabinets as well as the Roland 184 keyboard. The 184 has 4 CV and gate outputs making it possible to use the modular synthesizer as a 4 voice polyphonic. The 184 also has a pitch bender, arpeggiator (up, down, up/down and random), unison and polyphonic modes as well as a portamento. It was originally designed for the Roland System 100M but was built with all jacks as 3.5mm and 1/4" which was excellent foresight. Although in hindsight it makes sense as the Roland System 700 used 1/4" jacks so they were making it compatible with both systems. Still, A+ for Roland.
This is a portion of the system as it will be. Truth be told, it already looks different as since the photo I changed the layout and added some modules that were not present in this photo. A fourth oscillator, Steiner filter, STG sea devils filter (EMS Synthi clone) and STG Post-Lawsuit filter ('clone' of the 4072 in the ARP 2600). The left cabinet is now pretty much comprised of nothing but oscillators and filters.