Tim,
I saw this while trolling the Escape-related eBay ads:
Dlx DOG BARRIER FORD EXPLORER/ESCAPE MERCURY MOUNTAINER
(Apologies on the all-caps; copied directly from eBay link.)
Auction closes in 1 day but just something to watch for if you're still searching.
NOTE: I'm not the seller or in any way affiliated with the seller. Just happened to notice this item while doing my regular Escape and hybrid-related searches on eBay.