My last trip OS was to Fiji.
I took my little iOptron Cube mount, the 20d and a dovetail bar to mount it, the timer remote and the laptop. I only imaged wide field through the 50mm f1.8 and the Sigma 70-300.
The Cube fitted nicely into my small suitcase with my clothes acting as padding.
I got some raised eyebrows going through customs.