First impression is too many sound sources, filters, and effects, and not enough utilities.
Specificially:
Nothing wrong with Doepfer modules, but I'd swap the A-143-3 for a Xaoc Batumi II. Covers everything the A-143-3 can do, plus lots more, in 4 less HP.
If you're in love with the effects modules, fine, but I'd rather free up a lot of HP by ditching at least one of the delays and the reverb module in exchange for a smaller multi fx module such as ALM MFX, Disting mk4 or EX, Happy Nerding FX Aid or FX Aid XL, or the like.
Clouds and Blades are discontinued, and while you might be able to pick them up used, be aware that companies (e.g., Cal Synths) create clones that you can purchase new. Often, these will also save you some space in slightly smaller forms and/or come with additional optional firmware that extends capabilites.
I'd also get a different output module that gives you more control over panning, crossfading, and volume (e.g., Make Noise X Pan). This will help funnel your matrix mixer outputs with better control.
More generally:
I'd think about freeing up space to add utilities such as (in no particular order): more mixing, attenuversion, multiples, switches, noise/random sources, sample & hold, logic, crossfading, etc. I'd also add clock dividers but I think that's mostly like covered by Pam's & Digitakt.
Best of luck!!
Edit: Correction: X Pan is a mixer not an output module...I was thinking XOH, but they're both good modules for funneling several stereo outputs to extermal gear, especially when used together.
“You must have chaos within you to give birth to a dancing star.”
― Friedrich Nietzsche