Great that you're going to be well prepared. Clomid is definitely a love/hate type of thing. First PCT I'd keep it simple with a low dose of Nolva since you're running a very modest cycle & incorporating HCG.
I personally feel better on it, it doesn't effect lipids as badly as arimidex... more forgiving, don't really need to taper it going into PCT (i still taper though).
Its very easy to crash your E with arimidex, harder to do with aromasin. That being said if you do crash your E with asin it will take a while to bounce back.