Nice one Steve. I have been thinking about a move like this for some time now but haven't gone through with it. I really really hope you'll pull it off and don't ever feel the need to get jump back in the work field in the future.
I certainly hope more of us will be able to do this as Steem(it) grows and I believe this is also one of the goals of Steemit thought by the founders themselves: Allow Steemians to have constant earnings based on the quality of the content they create.
Being a full time Steemian...what a dream job!
PS. I've already voted for you as a witness :)