[HOGDADDY]

Shop4seats has bench seats w/headrests but they state:

"Recommended for use in expanded cabs; to maximize space in a single cab, the 40-20-40 low back truck seats are best."

I am ok without headrests. I rolled (more than once) a 77 C10 and crushed C5 bone in my neck many years ago and now have a cadaver bone in its place.
The only thing salvageable on that truck was the trailer hitch.
A roll bar might have helped.