Why not go with a Choice Band Metagross instead of Rhyperior? Rhyperiors major weakness is that it's Sp. Def is atrocious. Where as Metagross is a tad more balanced.
You could also consider Gyarados because that can also deal some heavy damage, while also maintaining some decent Sp. Def for switching into. Along with Dragon Dance and Intimidate, it can help to stop any slow wall attackers like Snorlax, Wobbufett, Wailord and sometimes Chansey and Blissey.
But solid enough.