Been using the Classic Accessories PermaPro for 9 years now. Light weight and easy to install and remove. As with any cover, make sure you add tennis balls to the down spouts, pad any sharps and handle with care. This cover has not rubbed or damaged my camper.
Ive tried other covers in the past. They are big, bulky, heavy, harder to work with and don't last. Think this cover will outlast my camper. 9 years and my cover still performing great. Doubt anybody else can say that about another cover.
However it's not custom but does fits nicely.
It's pricey but it's worth it.