I decided to add some privacy for my h27. After looking at shades and screens, I decided that blinds would be nice. These are common 1/2 inch household mini blinds. They were custom ordered 2 inches wider than the widest part of the window. Home Depot or any window appointment store would have them.

See Easy to install

I used #6 metal screws and predrilled the fiberglass. The screws were 3/4 inch. The minis come with hold downs so they wont flop around when underway. I shortened the blind adjustment handles so they wouldnt be in the way. The cost for all 4 windows was about $150.00