I am doing a white Mandolorian suit. Go to armor section, look and view my pre-pro pics, the added images from others who posted pics and see how I am painting mine (I think).
Look at my rendering of a Ralph McQuarrie design...

Click below to go directly to the string.
http://tdh.prop-planet.com/viewtopic.php?topic=10909&forum=4
I will paint your helmet if you are doing a pre-pro white. I am trying to get a group to do the same scheme. I also make "some" armor parts. Say hey or PM me.
Later, John