We are redoing our master bathroom and putting in a walk-in shower. The shower will be 6 feet long by 42". We want to put a bench seat at one of the short ends. We would also like to put double shower heads on the long wall. They can't come out of the ceiling because the plumbing would be in the attic and that won't work because of our climate. All the other walls will be glass (the side wall with the bench which will be glass from halfway up to the ceiling.)

1. How deep would you recommend making the bench? I was thinking 16"

2. How high would you make the bench?

3. What placement would you recommend for the shower heads, considering the bench is taking up over a foot of space, leaving 4"8" of back wall space for the two heads.

Thanks so much!