You might want also want to check out Magne Shade (
Home | Magne Shade | Sunshade for RV, RV Shade, Installs from the ground, Magnetic Shade, Magnet Shade, under products). They have a product (Flip Shades) we have installed in our Hurricane that works well. While not inexpensive, they have worked well for us so far.
The Flip Shades are installed internal to the coach. They are shaped to fit the three part window.