Hello Poggers. The front window shade issue is really in two parts. There is the privacy, nightime problem, and there is the while you are driving sunvisor issue.
I will do a couple of posts to keep the pictures reasonable.
For privacy, my Marathon came equipped with a nifty system of horizontal pull pleated shades for the front windshield and the drivers and passenger windows. The windshield ones retract into a center mounted holder. The side window retract into cavities created in the window moldings.
I thought it was one of the slick Marathon solutions to this problem. It has worked extremely well for us. It would be hard to retrofit the side window shades, but the fronts would be easy if you bought the part from Marathon. I do not know if they still sell them, but it is a part they made or had made specifically for them.
Pictures show it better than words.
