I'd do it. As long as you are fairly stable transplant wise and are not under active immediate monitoring for it. I don't think you have much to worry about bathing wise - you are long past the healing wound phase? Use bottled water for brushing teeth etc...
If you are worried about food sanitation pretend you are kosher and bringing most of your food in the form of energy bars, shelf stable and camping food, drinks should be ok since those are mass produced. That practiced with normal basic food safety eating out and you should be fairly good. Usually you know when you are eating risky things, i.e. buffets with cold food that is warm and hot food that is not hot.
It took about 1.5 years until my nephrologist told me he feels I can eat anything, but he still doesn't like filter feeders like oysters and mussels as those are just nasty in his eyes, and lots of healthy people get sick from them.
I'm still under active monitoring for rejection and infectious disease levels but hopefully, by next year, it won't be an issue. Who knows though... I've got a lot of time to research and make connections with relevant people in the area for information.
Since where we'd be working is akin to the level of a third world country, I'd be worried about basic things like how food is prepared. Like, food prepared outside with questionably washed utensils and while people of the region go out of their way to treat guests as best as possible, it's a little verboten to tell them how to prepare food. Just telling them I'm vegetarian while horse meat is their staple isn't expected to go over well!
As for bathing, I know a guy that went backpacking in the region (not the area we'd be in.. but quality of life is similar). Healthy as a horse. He got cholera from bathing from the smallest of cuts in his leg.