I moved to Paris from Canada 4yrs after my K pouch creation.
I did not speak the language or have medical coverage.
It was risky, it was scary and very challenging but after 38yrs I guess that it was worth it.
We now live in the day of internet. You can do research on the medical situation in each country, their insurance and hospital situation, their knowledge of your specific condition and where you can find a doctor that can help you if needed.
You can carry all of your scripts, pre-order and have meds shipped, download your whole medical file onto a USB key...
So unless you are hiking in Napal (and I am sure that there would be a way to get help even there) you should be ok in a civilized country (not a moral but medical judgment).
The rest is a question of your basic health situation pre and post-op and how strong or adventurous you feel.
Good luck...and keep us posted on your adventures!