The clean channel will break up pretty well on its own, I would try it as a clean boost to sort of push it over the edge. It'll probably sound really bad ass.
And of course you didn't think about it... With a dirty channel like that! Why would you
I really like my Orange. Like, a lot. I also tried a Barber pedal called the LTD that I really liked, it was a kind of a light/medium over-drive. Their pedals are incredible.