This is helpful, thank you.
Wife and I will have one large'ish rolling-bag each, plus mid/small carry-on's I would guess. Seems easier to me to just head over to the Granville/Hastings "Waterfront" SkyTrain station . . . buy our tickets w/ CCard, and head to the International Terminal at YVR for a 2:10 flight on AirCanada/United to Denver.
The her-story is (unfortunately) I have put my wife through many public transit connections to/from airports over the years. Heathrow-Jubilee Line (ouch) ... but truly it appears, "Less expensive and faster than
DCL's bus transfer, SkyTrain couldn't be easier," he promises.