D&RGW Business Car B7

I'd like to convert an LGB coach into Business car B7. I have a few pictures of B7's rear platform and sides. All the pictures I have are black and white. It looks like the car is in the standard green color. Was the B7 green for most of it's life? Was the roof black? Were the railings gold? Also it looks like B7 had two platforms. That is why I'm using an LGB coach. I'm not worried about different window locations and scale problems. I just what a business car for my LGB passenger train. I plan on cutting end windows for the rear platform as the pictures show there were windows on either side of the end door. Did the B7 have end windows on both platforms? Any info on the B7 and other D&RGW business cars is greatly appreciated. Thanks.