that lfo speed mod is also quite useless to make. you can get crazy
speed lfo's on mg-1 bu carefully placing the mg-1 waveform selector
between the two saw waveforms.
and you can route that superfast lfo with the mg1 modwheel to the filter
or to the pitch, and also the effects section uses that particular mg.
no need for a superfast mg-2 imho.

i would only midify the mono/poly with that chd elektro midi kit, and
maybe that s/h waveform thingie, altho i already get a s/h waveform with
my kentron pro solo.
is that vcf>fm mod something that you can not acchieve with that lfo
trick + effects section really

that subosc mod seems like overkill since you already have 4 oscs. you
can make the sound with 1-3 oscs, and use a the fourth osc an octave
lower than the rest (with triangle or square it works nicely, but if you
use triangle, remember to mix it louder than the other oscs for maximum
effect!) and i usually have to turn down two oscs when recording stuff.
othervise it won't fit the mix properly.

just my thoughts about modding the good old mono/poly.