Looks solid to me...about the only changes I'd make at this point would be to suggest using something a tad more complex than the Erica CV processor. Frap's 321 fits the space, and offers CV/mod scrambling that's on par with the Tiptop MISO along with the functions that the Erica module has. And also, going with a Happy Nerding OUT instead of the 4ms Listen I/O would allow you to fly in another stereo pair over the top of the rest of the mix...very useful for an extra FX return for something global, like reverb.

Other than that, though...yeah, build it. It's ready.