-Midi sync clock from ableton to pams works well with the nifty case.

-Mimeophon + Sealegs is also a nice combo.

You could use Mimeophon as dedicated looper device or wild feedback generator.
And the Sealegs for saturation and delay or a kind of endofchain processing.

-Ikarie is also nice, it adds gain with a kind of smooth drive besides the filter.

-You may consider to add a mixer and more attenuation
like a matrix mixer or a mixer with send/return.
mixer modules like Cosmix Pro or ALA Bartender have send/return - but are also large in hp.
a matrix mixer may work also.

-You could add atenuation- and polarizer modules like: Befaco Attn, Lapsus Os, acid rain junction,

-also a small compressor like Wmd Mscl could be nice

-The nifty has no stereo out - so you have to find a solution - if you want stereo out.
even a Befaco Outs could work.

-Mimeophon can transform mono input to stereo outs

Greetings

Chris