Actually, on second thought, if you can reduce the footprint of the output module to 2HP, I would remove the FX Aid XL and in its place put the Cold Mac, which gives you lots of options both for audio modulation (you can use it as a distortion, a waveshaper / folder, a panner) and utility (logic, offset, slew, envelope follower etc.) or both (6 channel mixer, VCA), and also as a controller with a big knob that gives you the control to play your patches that you are lacking in modules such as Pamela and uO_C. It's a module that requires a somewhat experimental approach but there is a lot of documentation and it can be a real centrepiece for any patch.
You could also consider replacing the 2HP Trim with the LPZW WK2 module when it's available again, which adds to attenuation the added functionality of offset (really useful to dial in precise values) and slew (to turn stepped modulation into a smooth one).