Not that I've made it a point to always think of every possible outcome, but I'm like this most of the time too. I feel like I need to prepare for anything always, so I make backups and backup backups.
I hope everything works out fine and you're able to travel as much as you like. I love traveling, and if circumstances were different, I'd travel a lot. For now, it's only wishful thinking. Might be different in the future. I hope so.
I was caught by surprise when I saw back issues. I hope it gets better real soon, man. Anyways, what type of back issues do you have?