Yeah, ive got one, or rather she owns us.
How much to buy? Ours was £470 un-nuetured, we've since had her neutered ourselves though.
No, she's a cat, not a dog- not sure exactly what you mean there?
Yes, she likes water, plays with it from taps.
Both us and our friends have main coons, and we've both discovered they're quite high maintenance, extremely vocal, and you've never met an animal as nosy until you've got a coony!
If you look further down, there's a post by me with a picture of mine slumped on top of my fridge.
Any more questions, feel free to ask :-)