for about the same price you can get a doepfer lc6 - or for a bit more an lc9 - these are both significantly better starter cases than the beauty cases you are aspiring to... get one of those if you need to fit it in your handbag once you actually know what you are doing.. but start with a case you won't be replacing in 3-6 months!
it is not just missing vcas it is missing all utility modules - whilst you may be able to get a limited range of sounds out of this I suspect it will not meet your expectations
add a quad cascading vca (veils for example) and a basic starter utility set of links/kinks/shades and put it all in a 6u or 9u case
you will then have room for expansion when you realise that you are missing lots of things you need/want in order for the modular to be worthwhile
otherwise dump blades and/or morphagene - replace blades with a smaller filter - to make space for some utilities
the same could be said for maths - but - working your way through the illustrated manual a few times is a very good learning experience!
"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