It's been a while, but I've done that several times. The best way I've found is to launch at Port Alberni and boat there. I usually stayed at Poett Nook but a couple times in Ucluelet. Of course you can drive to Ucluelet as well. Driving to Poett Nook or Bamfield isn't a great idea, lots of bad roads.
Anyway, ferry to Nanaimo, drive to Port Alberni, boat to your spot. Fishing can be great if you hit it right.