I had managed to couch jump up to the King and was just curious if this is the intended method of reaching that cliff overlook. Also he seems rather jovial. Edit: I realise that this game is unfinished and so this is probably just due to that.
It's very easy to just walk up to the king (via walking up the side of the mountain at certain locations where it allows you to ramp up the slope - like a staircase) (and via a part of a mountain some ways off - (seems unintended))
I'm not entirely sure it was intended for you to actually be able to use these ways, However, Ironwill does greet you at a certain distance to his model - a distance which is shorter than not being up there. - So I assume it was expected that you might be able to, and maybe, intended.