As for pee-pad train...don't think it'll be a problem. First of all, it's dog-friendly, lol. Second, just bring your ex-pen at night and make sure she goes out every 2 hours like you probably do at home.
I would say if it's hot for your feet, it'll be hot for theirs. Have you tried putting them in shoes before? You could try Pawz too since they're waterproof.
What is the weather like there now? Would it be too hot if she wears a light shirt?