Chooks don't stink. They can make a bit of a mess with droppings if you've got a paved area, but nothing that won't sweep away. No need on grass/garden.

I only have a normal suburban style block, nothing huge and we live in a rental. But I agree your new rural setting sounds much more suitable! We have three chooks and they are the easiest, least messy pets I've ever had. Except for maybe a cat. They even put themselves to bed at night. And like Kaz's, they follow us around when we're outside. I suspect mostly for their interest in being fed, but still!