I got mine from Quadratec. Best price I found at the time.
I had a cargo liner in the rear that didn't fit well anymore so I cut it up and used it on top of the Tuffy. Looks good, I think.
It's not in the pic, but I ordered a Lloyd rubber cargo mat that covers the entire rear (minor trim with a scissor) and stays flexible all the time. It extends under the back edge of the Tuffy and covers the back of the rear seats when they're down. When the seats are up, it folds over easy enough between the rear seats and the back of the tuffy.