Thanks for the reply!
I'm a bit worried about the case and the cooler I've chosen (R6). However by the reviews and builds I've seen there's plenty of options of internal layout with R6, so I keep my fingers crossed.
With the memory of 2x32GB and 3000 MHz I'm not so sure, as by the specs there are sweet spots defined as follows (at least this is what I've seen on Linus' video):
DDR4-3200
4x8GB
4x16GB
4x32GB
DDR4-2933
8x8GB
DDR4-2667
8x16GB
8x32GB
Also the CPU is Quad channel, so I'm a bit hesitant of going for just 2 slots, especially considering my budget.
For system SSD I have to go 1TB, I need several IDEs for app and desktop and web app development (Android Studio, Visual Studio) with often a lot of SDKs that come with it, plus the entire Adobe and Affinity suite, 3D posing and modelling software and a ton of music software. I've had 480 GB OS drive before, and it was ok, but I had to be careful with the remaining space, which is why I want to go 1TB this time.