I will have to put a part of the whole fence into the ground cause she can dig a tunnel anywhere.
Yeah, rabbits look cute and cuddly, but they can be quite destructive. You'll have to put chicken or mesh wire below the surface all the way round the enclosure. Don't leave a break where the posts are sunk as they can chew through wood and she may get out by chewing her way through a post. Sure you know all this anyway! She is trying the rabbit version of 'The Great Escape' :)
have you ever seen a snake kill and swallow a large rodent?
No......but I would probably be the one trying to rescue the rodent! I know that that is natural behaviour for the snake but not sure how I would feel seeing it close up! I find animals to be very therapeutic. I've had 3 cats, 2 dogs and many pet rats, hamsters and a rabbit when I was a teenager. Now, I have what looks to be a feral cat constantly camped out in the garden. I've been feeding it scraps of meat, but I can't get too close, he/she hisses like mad and constantly swipes with very sharp looking claws......
It will be a big one
Massive! But I'm sure you'll do a good job and it'll look lovely when it's finished :)