I tried it from Victoria. The maps on the homepage didn't helped at all. I lost the trail after 15-20 km after I left the Galloping Goose Trail. No signs (Vancouver Island) at all. In Victoria I couldn't buy the book because it wasn't on stock. I believe this trail is a good idea, but you need a lot of time for navigation. Without the book (or a GPS track) you'll loose the trail quite often (like me). The books are essential.

To be honest: choose your own route. Some really nice spots (for instance Icefield Parkway) you'll miss on the trail

Thomas