Hi Joelstj,
Since you plan such a small rack, start with removing the Mother-32 from Moog and the Make Noise - Morphagene and then consider a classic setup of minimum 2 VCOs, 2 filters, 2 EGs, 1 or 2 LFOs, 2 VCAs, mixer, audio module you got already so that one can stay and the Maths module is large but if you wish you can keep that as well, almost half the world got one ;-)
Brutal on removing these two modules (Moog + Morphagene)? Yes indeed but they slurp up so much space that's not worth it for such a small rack. The Moog can work in it's own case so leave it there first till you got a mega rack and you don't care any longer about a 100 more or less HP space but till then better leave it out :-)
Doubtless, the Morphagene is a fantastic module (it's on my wish list too) but not to start with and not with such a small rack.
So consider at least 3 rows of 84 HP to give you a bit more flexibility in the near future.
Consider working on the above classic setup and then take it from there, build up your experience and take it slowly on increasing the numbers of modules. Don't buy in one go an entire full rack, that's not recommendable.
Good luck with your planning and kind regards, Garfield Modular.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads