Hey there,
I hope you come up this way. As far as I know the only ferry service to Victoria that will take vehicles is right here in Port Angeles. It is called the Black Ball ferry. I tried to attach a link and for some reason it would not attach. Just look up
www.cohoferry.com Black Ball ferry. Let me know via PM if you do come over we have plenty of room to park the van for a day if you want to explore. Also if you don't go over to Victoria you could always make the 280 mi loop around the peninsula.
Have a great day/trip, oh but you are all ready doing that.