why the constraint on size? masochism?
these maybe the modules you want but you do not have the modules you need to get the modules you want to play together nicely
you are trying to do too much in too small a space and you will probably have an unpleasant playing experience
there are at least 5 potential voices there - and no mixing - so it won't work as you expect anyway - in fact it just won't work
throw it away and strip back your requirements to the bare minimum and start again - preferably in a bigger case (Mantis is good and reasonably priced as is the lc9) so that you may actually enjoy playing your instrument
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities