Doors on 77' 280Z 2+2 vs. 76' 280Z (Non 2+2)

I am trying to buy some nice doors b/c mine are really rusty. I have an opportunity to purchase both clean doors from a 77 280Z 2+2 but I am concerned if they are longer or different. Does anyone know if there is a difference? And, is the hatch different?
Thanks.