Procar Rally Seats In 1966 Barracuda Interior

I'm probably looking at ones that look more stock than the heavily bolstered seats so I don't think getting in and out will be a problem, I hope.

I imagine all the seat brackets attach to the seats the same way, with the tubes with female threaded inserts on the ends or something like that?

I'd really like to know if the '63-'66 seat brackets will work. I can't seem to find anyone who has successfully used them.
Correct on the mounting
https://www.jegs.com/photos/900/942/942-81000inst.jpg