Some of the best cats can be found in local animal shelters. The misguided assumption that shelter pets are "damaged" is just that- misguided. Most cats that end up in shelters are there because the owner can no longer care for them.
Spay or neuter your pet if you do not wish to breed them or have unexpected pregnancies. The urge for male cats to spray or mark their territory will diminsih with a quick snip! Both males and females usually become more docile after their "rarin' to go parts" have been altered!
This is a full size bed and yes, that's a Maine Coon. It sucks to be him, eh?