I have a used 22-23ish inch clear Madstad windshield for a Spyder F3-S. The windshield is in good condition. There are some slight scraches on the black spoiler that the windshield attaches to. The windshield may have some imperfections, but I couldn't find them by looking at it. These windshields go for over $350 new. I'm selling mine for $200 plus shipping. Provide me your address and I'll give you the shipping amount.
I will also throw in a couple of wind deflectors that mount to the side of the instrument cluster.