Kobo Aura One is way too good (and big) for camping. Kobo H2O would be perfectly fine.
Eink screens can break easily. Covers or cases are an absolute must. A Pocketbook Aqua 2 would be quite adequate and moderately priced so that it would not be such a terrible loss if it broke
https://www.pocketbook-readers.de/de...x/sArticle/168