On my 51 Panel
I used the leather seats from a 2007 Mercury Mariner that was wrecked with only a couple of thousand miles... The late model auto recycler sold them to me for
a scant $200! They are two toned leather, heated, and the driver side is powered.
( I believe the seats in Explorers and Mountaineers are the same).

I set them in, drilled holes for the brackets, and they look and feel great.
They sit a little high. I may cut down the front brackets slightly to lower them, but
at least I have a comfy seat. Also, John, please install shoulder harnesses (Juliano's is my preferred vendor) while you are sizing up for seats. A good hit in one
of these old trucks could bust a guy up pretty bad, so be safe!
Mike