I also used a bench from a 1988-94 Chev truck. It’s a little wide but installed easily enough. I’m 6’ and used a 1” riser on mine. I find that height perfect for elbow out the window cruising height. It fills the cab from door to door, with about 1/4” between door and seat, but I can live with that. It folds down, lots of under seat storage, my wife can reach the pedals (5’7”), and it was cheap. $100for the seat, $60 to have it cleaned. I love those seats.
https://photos.app.goo.gl/1YFEho6LeGdE9EQPA