If you are thinking of living aboard year round in Vancouver a pilothouse should be high on your list.
As for single handing, I am 64 and single hand my 44 footer without too much hassle. Slab reefing main.
Go and have a look at this clicky
a pilothouse with some good kit.
If you are a fit 6 footer you will quickly learn to manage her. Warmer than anything else you are looking at and a MUCH BETTER liveaboard.
My concern would be the deck. It would need to be gone over by someone who knows what they are doing. If it looks like the whole deck is rotten and needs replacing walk away, a couple of sq feet would be an easy fix.