Thanks so much for all the suggestions guys. Not sure how that Erica HASDR module got there, I've put it by mistake.
I did some adjustements and now it looks like this:

ModularGrid Rack

Space is not an issue, because I'm going to extend my rack to another 3U of space. And after that, I'm going to expand further.

For now, I've bought: Hermod, 4ms I/O, Ears, Black Hole DSP2, Rings, Veils, Plaits, Manis Iteritas and Maths.

Acording to what you say here, I would need multimode filter and a utility module so I've put Instruo I-o47 and Frap Tools 321.
On top of that, I think that Morphagene would be really useful in my project (creating ambiences and morphing live recordings).

I would be really grateful for any kind of suggestions.