I would argue that if the condition is "really long and boring", then it is *more* important to have braces and whitespace so it is easier to see where the actual action being taken is at a glance. The only one you mention that could work for me is:
Unfortunately, that's at the expense of putting the cart before the horse IMHO. The action doesn't matter if the condition is not satisfied.
My mission: To boldy split infinitives that have never been split before!