Do you have any family in your current country? I would backup everything to external hard drives, and leave multiple copies back at home with trusted family me

Do you have any family in your current country? I would backup everything to external hard drives, and leave multiple copies back at home with trusted family members. You can encrypt the drives if you don't entirely trust these people. If your travel goes smoothly, no problem, if not, someone can ship you one of the drives, or perhaps hook it up to their own computer or NAS and set up a downlink, or send to Backblaze, etc.