This is what I went with in the end.
ModularGrid Rack

Out of the rack, there's the Beatstep Pro, the Thyme, and a Po-12. Vortices is a bit profligate of HP but I always wanted one so I went for it.

When I was just about finished I realised that I did not have enough power headers for all these modules, so I had to swap out my attenuverters for a passive 3xATT from ph modular (who I recommend very strongly!)

Now just to see if I can get this bad boy past airport security!