West Coast Vancouver Island

It's also steep in a couple places (short stretch at 18%)
Nothing I wouldn't take (and have) a small trailer over.
I don't think I would try with the current rig.

It is a good road albeit two lane and twisty so take your time and enjoy the scenery. There are very nice campgrounds but be aware reservations may be required as anywhere near water will be very popular with our hot dry summer. 171 km (just over 100 miles) from Parksville so allow 3 hours to be comfortable.