Large Dog Kennels?? Long Story

I need to buy a large dog kennel for my cat...she is peeing all over our house and we have a baby on the way...I've spent THOUSANDS of dollars on her over the last 4 years and she was only peeing on tiled floors, but now she's moved to the carpets. The vet and I have tried EVERYTHING...even Prozac for cats, but now she has hyperthyroidism and I can't medicate her with anything else other than her medicine for that. She is going to freak out when I have the baby and find even more spots to pee on. I'm stressed out of my marbles trying to find where she's peeing and trying to clean it up. Basically she is ruining our home. She's 14 years old and I love her to death, but I am going mentally insane, so our only option is to limit her area of movement while we are sleeping or not home. We have a finished basement that we'd like to put a large dog style crate in with her bed, litter pan etc...We'll be in that room all the time and I'll let her out when i'm home and can watch her, but while I'm sleeping or away, she is going to have to be caged. We want to get a really large one so she doesn't feel so "caged in." Does anyone know where I can buy a large dog kennel? TIA!

Re: Large Dog Kennels?? Long Story

We got our large kennel at PetCo. I would shop around though bc it might be cheaper at other places.... Try Target, Walmart, Pet Smart, Cosco, BJs