Need tonneau cover with seat folded up

I don’t know why I didn’t think of this…
I have a Smitybuilt tonneau that was given to me and fits with the seat folded into position one.. so with just the seat back folded forward. It won’t fit with the seat folded up against the front seats.

I’ve had someone in the back exactly two times. I haven’t removed the rear seat because I have the Bestop Rear Security Deck installed and removing the seat, but leaving the deck in doesn’t really make sense space-wise.