first rack, plan to integrate with my analog keys and future retro revolution

i'm new to this, so please forgive me if i've overlooked something essential. the fact that i'll be incorporating my AK and FRR leads me to believe that these two units will fill in roles in the usual rack.

i worry that the yarns may be redundant, considering that the FRR and the AK do cv to midi...what would be a good replacement if this is true?

Check out Grayscale "Synapse" to use with the AK.