Introducing myself and a few questions

[llurgy]

Hi, name is Mandy and I am doing some research on my new pet snake.
I haven't gotten one yet so bear with me please.

I "think" I have narrowed it down to a choice between a Rosy Boa and a Ball Python.

I would like a snake that is more laid back, otherwise I would go for the Corn snake. We already have a crested Gecko (named Mo), he kinda fulfills the need for the hand over hand walking and so we dont really want a snake exhibiting the same characteristics, hence the desire for a snake that is content just to sit and chill.

We already have the tank.....Exo-Terra 24x24x18. It has a mesh lid, which I know is not really all that great for Ball Pythons, but we would like to work with what we already have.

Like the idea of a Ball Python, but am concerned about keeping the humidity up, would buy a fogger, but reading reviews, it seems they are prone to breaking down. Any clues here as to reliable foggers/misters?
The Rosy Boa seems "easier" to keep because it doesn't have such strict humidity requirements.

Our problem is that "sometimes" we are away from home (hospital) and our neighbors have to come in and see to feeding etc. Spraying the Gecko tank twice a day is one thing, and doable. But having to check and rectify(if needed) the Ball Pythons requirements is quite a different ball game.

For either snake, was thinking of a Orchid Bark/Eco earth (50/50) substrate. Was thinking of feeding the snake in a separate place.

Any advice on which snake would be greatly appreciated, or if anyone has other suggestions...........

No reptile breeders near where we live so it would have to be pet store or mail order.