The WCT has a reputation for being a tough, wet, sometimes miserable slog through incredibly rugged and beautiful country. IIRC it was built as a last-chance exit for sailors wrecked on that part of the cost, and the whole length is "shipwreck alley."

Have you already applied for permits? It's now internationally famous. Last time I checked, the masochists of the world were lined up hip deep to hike the trail, and Parks Canada had instituted a lottery system.

Consider this: Juan de Fuca Provincial Park runs on the northern west coast of Vancouver Is. It's magnificent, rugged, and considerably more accessible in places -- I have done dayhikes in some sections. It might give you a good place to test your planning, gear and mettle. I found out rather quickly that my Rocky Mountain backpacking experience didn't amount to jack when it came to operating in coastal rain forest.