Ashby for Fogg seems like an excellent move.
I like the Hillenbrand/Moyer package idea very much. You probably won't get a true stud, but if you can get a solid starter, you'll come out ahead.
Klesko for Maddux is interesting. I like the idea, but I am a bit worried about his health. This sort of injury is very unpredictable, and his control hasn't looked like what we're used to with the exception of his last start. Still, I think the potential reward justifies the risk; go ahead and make this offer.
I understand what you mean by hating to drop Moyer (but don't hesitate to disagree with anything said here, anyway
). You're right, if you can get a decent return for him, you'll feel a lot better when he does perform well. Especially in most h2h leagues, he certainly isn't waiver wire material; the point was merely that if closers are worth more than usual under your scoring system, you'd have to consider dropping him or other good players to grab saves.
Good luck with your offers!