Just to add some detail to my previous comment, here's a travel rack I was considering. The advantages are that the output jacks can be accommodated in the 1U space, leaving room for an output compressor, which I find almost a necessity for live work.
This is not finished, since it doesn't really give me the two autonomous signal paths I need to flow changes out of the stereo sampler. (I will also be add external sounds directly to the Braids input.) 24 HP is devoted to modulation: perhaps this can be more compact. Would be good to have a delay unit, even a simple one, so I don't need to bring along my Nemesis.
Ideally I should work out my needs in a larger rack first, then downsize for travel. Ideally, then, I will win a great deal of money. :-)