suggestions:
bigger case - you'll want to expand almost immediately as this is already nearly full and is very very limiting and in a lot of cases overly cramped
whilst I don't normally like the words redundancy or overlap in relation to modular synthesis - because in (even slightly) larger systems it is to be encouraged to a great extent - I would dump either steppy or numeric repetitor - pams and one of these will be more than enough
get the quadrattor instead of the duatt - or add some vcas in the 1u row
consider bigger fx unit - fx aid xl - or preferably pro - instead of the pico - ergonomics are important - 3hp is very small and fiddly
same for a mixer - ergonomics are important - 3hp is very small and fiddly
add another filter - or an lpg that can be used as a filter or an lpg
"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