Vancouver, B.C. to Whitehorse via Vancouver Island?

The main highway up the island is freeway all the way to Campbell River, fast and easy, but far enough inland that you miss all the seaside sights and businesses along the old coastal road. There are the usual exits and access roads.

North of there population and traffic drops off significantly. There's a bit of a pass, but no tight or curvy sections. The main business, until it returns to the coast, is logging.

I've mainly used provincial parks for camping and sight seeing.