seems a very expensive way of housing modules to me... and probably much more likely to get noise issues than with fewer cases... you'll probably also need longer cables... and lots of sockets or power strips
most of that would fit in 2 tiptop mantis cases which would cost you substantially less and be more portable as a whole - plus only need 2 power sockets... probably need fewer long cables and only use 2 bags when needing to be taken out of the house
I have 8 cases (about 1800hp in total), 6 of which are stationary - ie always stay in the studio - if I want to go anywhere else with them - including the living room, I have 2 smaller cases: a mantis and a 6u/72hp, which I swap modules in and out of - I use befaco knurlies for screws and only ever screw 2 holes per module - it's simple to swap them (mostly takes minutes) - saying that my mantis is my main video case and I rarely swap more than a couple of modules in/out of it - I really can't see the need of anything smaller - not only on a cost/hp basis but also on a portability/use basis
I always need modulation and utility modules for even the simplest patch - I would undoubtedly always need 4 or 5 of those tiny cases - and moving that many units would be too much of a pain in the ass
for example I am currently set up in the living room - mantis has 3 audio modules in it - a small mixer, peaks and a doepfer lpg - as well as a most of my video synth - the 6u has erica black sequencer, rings, veils, tides, kinks, maths, a small clock divider (used as a sub) a couple of filters and an es8 - these and a video mixer sit on the coffee table and I can wiggle comfortably from the sofa - I have multiple voices - rings is going through both filters patched as a 'mutronics mutator' ish filter - in mono: channel 1 into channel 2 - tides is going into the lpg and the clock divider and I am using peaks for kick and snare
it's great fun and would be much better with a few extra modules - more utilities and modulation and maybe another voice and some hats - all of which are in the studio - another mantis would be perfect - and leave the 6u/72hp upstairs in the studio - but that will have to wait...
"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