A Cal 34 is plenty of boat for your purposes... My wife and I, and two older kids (12 and 14) do well on our Catalina 30 for about a week in the San Juans.
Yes, the inboard engine is the way to go.
Keep us posted on your progress.
I suggest that you start a new thread with a relevant title if you are looking for specific PNW advice.
You almost slipped by us!
1987 CS 36 Merlin "Kyrie"
"They drove a dump truck full of money up to my house. I'm not made of stone!" -Krusty the Clown