@troux is right - basically you need a lot more utility modules to get the most out of what you have got - the options are: throw out, minimise where possible, or go bigger (add an extra row) - I'd pick the third option personally
plan a 3rd row for now - and once case 1 is full by a 2nd case the same size - then you will have space for all this, the modules you need to support it and a decent amount of space to support further expansion - or some space to spread out the modules you do have so they are less cramped together
"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