With the Vixen 1.25" adapter and star diagonal, mine measures 1,028mm from stem to stern. You could lose about 50mm without the diagonal in place.
Thanks - that's exactly what I needed to know. I can look for a suitable case online now. Probably something like a tripod or lighting-stand case off Amazon with the right measurements.
For visual back, I went for this, as it looks very secure and will arrive quickly:
Is it ok to ask further questions here, or should I open a new thread on the CT board (about accessorising etc)?