I do have a water bowl in my crate. Batty drinks barely anything so I'd rather have it there. He's slowly getting better at drinking but there have been days where I've had to syringe water to him. This is a personal choice and his water bowl is hooked onto the side of his crate so he can get a drink but can't knock it over.
If you have a look at the crates in the stores and get an idea of what size you need for Mollie (make sure you measure it!) then you can look online for crates that are that size or a little bigger. I find they are a tonne cheaper online, particularly at sites like dealsdirect.com.au.