Prices are very sweet but how much risk is involved with refurbished? Keep in mind that playing the returns game will hardly be an option as I will do cross-border shopping.
Think of it this way. Someone else has already worked out the bugs for you.

Lots of us, myself included, have refurb units from A4L, and have never encountered a hint of a hiccup. But I'm sure D+M Group has a location in Canada to whom you can send your receiver should it need warranty service or replacement.
I will swap the JBL ESs with your pioneers and will use stands you linked prev. to have the left and right speakers reach the mounted tv to sitting levels. Any recommandation for brackets to wall mount the surrounds?
Are you planning to use your Klipsch RSX-3 as surrounds? Don't the bases already have keyhole mounts you can use to hang the speakers on the wall? Or are you intending to get a second pair of Pioneers to use as surrounds?
Rough layout of my room below: L C R SL SR Sub is the speaker placement, grey is my TV, brown is my L shaped couch and the blue/blue red things are a fish tank and a glass enclosed fireplace.
Are the speakers positioning appropriate?
If it doesn't make sense I'll post real pictures later.
Real pics might be illuminating. Your masterful MS Paint skills notwithstanding, the proportions of the drawing make it hard to offer a recommendation.