I think you're in that range.
To do a Jasper area thing...one or two days just to get around there. Waterton is an extra little chunk that you could consider. Then you're just looking at flying from Calgary or Edmonton to Vancouver, and then either to Vancouver Island....
The Pacific Rim is a bit tricky to get to. Sometimes you'll find weird logistics. A place that's directionally only a few hundred kilometres away is more of a hassle. It's three ferries plus a four-hour drive versus some place that can be quite far but that's one plane stop. It's the way it is on the west coast sometimes, because of the ferries and everything else.