Hi Sacguy71,
Since you want to make a kind of Erica Synths rack out of this, if this would be my rack, I would have add the Octasource for some nice and crazy modulation, which module has to leave for that... is indeed a bit difficult. Is there not an option to add one row? This is a slightly bit small case. I remember you got already this 2-row-complete-Doepfer-system, so why not add a 3-row rack to it and use that 3-row rack for this idea? :-)
Just my 2 cents, kind regards, Garfield.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads