Although, I've got to throw this out there.
If you want an easy animal to start out with, you want geese.
No, not exactly. They make two different kinds of pellets. The one they eat after their food goes through the first time is soft and green - like a goat's cud, not like poop. Their poo pellets are just poo and they do not re-eat them. I find it to be pretty equivalent to goat poo as far as the effect it has on my plants, no better, no worse.
rabbits are not efficient at deriving nourishment from what they eat; they often eat their own poo at least one time through for that reason. I think that rabbit poo is likely, for that reason, to contain a lot of broken down but unabsorbed nutrients that are superior plant food.
Probably not, apparently most strains of wild (American) rabbit are not closely related enough to domestic (developed from European) rabbits to crossbreed. Though don't quote me on that, it's from reading on the 'net, not personal observation. Interestingly, My father insists that the wild buns in our brush are descended from some that a neighbor released that went feral.
I wonder if it were possibly to legally raise a couple of wild rabbits and then breed them with a larger, domesticated rabbit? Still, that does not give one the thrill of the hunt.
Easy enough. I keep my buns in my garden, makes it easy to give them cuttings and I don't have to haul their poo. A couple does and a buck can produce all a person would care to eat in a year, plus some for the dog. You do have to get outside input for your gene pool now and again, but there are lots of bun raisers out there, it's not so hard to find someone to swap with. If you want to pasture them, there's more work involved in setting up, you either have to invest in a way to keep them in an area or keep them out of your garden (assuming you have one), but then they pretty much feed and raise themselves. Personally I wouldn't bother with wild ones at all unless you're worried about introducing an invasive species. Just get a non-white color and the domestic buns will probably adapt fine to being outside. They haven't completely had survivability bred out of them, but they grow much bigger and faster then the wild buns.
How much work is it to raise rabbits? I have never raised them for meat so cannot speak from first hand experience. I know of people who do raise them.