which tent is better for my grow?

I am about to start my grow. I will be buying my items friday. I will be using a 32x32x60 or a 32x32x84 tent. Which would better? I will be using a 400watt light. So would 60 inches in height be enough for that size light or should I get the 84? I will be scrogging my plants. I am trying to factor in bucket height, screen height and much space the light will have above the canopy. Here are the choices. 32"x32"x84" Mylar Hydroponics Grow Tent Room 2.6'x2.6'x7' clone T012 32"x32"x60" Mylar Hydroponics Grow Tent Room 2.6'X2.6'X5' Clone T003

my box is 3ft so 36" and it is more than enough for a scrog I just topped my plants a couple times and they are happy happy happy seriously they are almost finished and are doing very well for what they are

Tent never have enough space go the biggest you can get, just keep in mind the foot print size of the 400w