Ok well got my 900 and I'm getting 2 12" UV cathodes what I want good exposure with, Ive bought a 4" UV replacement so that one 12 will be behind the top of the side door and the other bellow the rear fan. Then I'm getting a 12" red and 12" blue to fade from top to bottom so I'm thinking of places to put them without being seen through the window. My idea was to mount then just behind the border of the inside of the door.

Any ideas/photos of where you have your cathodes.