Hey Garfield Modular,
thanks for your advice. At the moment I already have installed every module in the rack (Mantis) you can see in the picture. So I really know how limited my space is right now. I have tested the Harmonic Oscillator and the Complex Oscillator and I decided to keep the HO. So I still want one more oscillator for drones and textures. I strongly lean towards the E352, soundwise.
But it will take some more time until I got the money together, so I should have enough time to think it through.