Santiago, when you have the opportunity, please provide the dimensions of the Atlas dome--length and width. I emailed Atlas a couple of days ago saying that I'd be interested in buying 3 domes, but needed the dimensions to be sure they would fit the NOS Clarke Benson vista dome cars that I have--no response, yet.
Also, I ordered from P&D yesterday three of the Mars light housings you pictured; so, thanks for the information.