I'd think seriously about dumping the cellz and chipz modules - I've seen a lot of bad reviews from people who have bought them
is the budget a this is it no more ever, or is it a this is how much I've got and I can spare another x per month?
if it's the former I would go for the nifty + the dreadbox modules (get a second vco if you can) and an SQ-1
if it's the latter I would probably go for a cardboard case for now, something like an SQ-1 for sequencing and a simple vco, a simple low pass filter, a simple lfo and a quad cascading vca - use the vca as output to where ever
or better yet learn to solder and build something like this https://frequencycentral.co.uk/product/product/ or this https://frequencycentral.co.uk/product/starter-modular-bundle/ or start out with AISynthesis modules
"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