Oh I forgot to say....I'm seriously thinking of getting a Pet Loo. Maybe you should look into it instead of pee pads. It holds alot more liquid, and theres no paper for them to shred. I think it just looks more hygenic as well, and you can move it outside to let her pee on it when you let her out to potty-but move it inside on the end of her kennel for her to pee/poop on while you're at work. I really like that idea. There a little expensive, but you'll eventually save money by not bying the peepads.
Oh and 3 kennels put together is better. =)