Thank you everyone for your responses. I'll definitely take into consideration your suggestions, and perhaps I can hold off Arbhar for now (that may come in my next eurorack case or if I upgrade to something bigger down the road).
With Plaits and Rings (and with my external Moogs which I can patch into Hyrlo) it seems I will have more than enough sound sources to work with.
I'll plan out my next purchases and will likely come back again in the future if I have any other questions. Thanks again everyone!