Help with barracuda seats!

Have a 67’ barracuda notchback with bench seats currently, but really like the 69 seats because they have the head rest, and cutout for more room in backseat.

Will 69’ seats and 69’ brackets work in my car? As well as the rear seats?

there is no difference in rear seats in the fastback and notchback version of 67 or 69 ya?