Ceiling Mounted Rain Showerhead

My husband is over 6' tall...he constantly hits his head on our showerhead....
We are getting our house repiped...

We thought it would be a great idea to have the plumbers repipe to the center ceiling of our shower so we can install a rain showerhead.

We would like some professional opinions on:
1) Is this a good idea? In the shower it is 7' from ceiling to floor; the shower stall is 3' X 3' and there is 19 1/2" from the ceiling to the top of the shower stall)

2) Is there a rain showerhead that mounts directly to the ceiling?

3) What should it be made out of (brass, chrome, etc) for a longer life?

Thanks for your help!