I don't think there are any connecting rooms that both have king beds. I'm pretty sure all the king rooms that do connect are to a room with 2 doubles.
What you are asking for is 3 requests. General rule of thumb is the more requests you have, the less likely they will be to accomodate them all. All you can do is ask and hope for the best.
You may want to try to narrow it down to which ONE requests is the most important and aim for that one. We've never had a problem getting one and rarely getting 2 (back when you had to request non-smoking.)