I would do more research - a week is really on the very low side...
ignore the case and work out the modules and functionality that you really want
sequencing:
bia with pams - ok
plaits with steppy? are you intending to use plaits as a melodic voice? if so steppy is a trigger sequencer - so no melody - pams acan do something like a turing machine - but I'd want some way to deliberately sequence too
tiny case:
you would be much better starting with a much bigger case, work out your workflow and what module you need to achieve that, and then if you are desperate to only have a micro beauty case scale down - the tiptop mantis or doepfer lc9 are good starter cases
overly large modules:
the delay and attenuators strike me as very large especially for this size case - fx aid xl - much smaller, more versatile - would replace attenuverters with vcas (& maybe a 2hp inverter)
too small modules:
vcas - vcas are fundamentally important to most modular synthesists - they are useful for modulation as well as audio - you probably want more of these - veils is good
"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