The first cage you mentioned is big enough and drainage can be managed, depending on the climate where you'll be using it may or may not be a better choice than the reptibreeze. A cage that size is a bit small for an adult but a suitable free range can give them some excercise, I would also...
Thanks to both of you! @Rorschach and @brownie64 the cheap one will be perfect for now, the analog switch should be fine with the timer. That fog ponics system sounds cool I'm going to look more into it for future use outdoors.