Okay, I ordered the Dee Zee based on your recommendation. Let's see how it goes. Got it for $101 on Amazon (plus my 5% cash back) and free shipping / no tax so OTD at less than $100. I had priced out doing LineX, but it just felt expensive and overkill for what I need, which is protection in the bed from things sliding in and out.
I did check with WT, and it seems that they still don't offer anything, but it was also nearly $200, which seems rich for something I'm going to pile firewood on.
Thanks!