We were searching for an inexpensive, convenient, yet "green" way to cover the windows for privacy. I like old fashioned roll up shades, (and I love the price!) but not the stinky plastic (vinyl?) they use in the standard styles available. I saw a kit to make your own shade with the fabric of your choice. This thing was EXPENSIVE!! I could buy 3 or 4 ready made plastic ones for the cost of one of these kits? Why?? If I buy the cheap plastic ones, will the mechanism be sturdy enough if I put real fabric on them? Has anyone else done this?