I've seen some batwings that look decent.
As for a windjammer, I haven't seen one.
Have seen a fixed fairing from a Yamaha that was fabricated to fit a sporty. Took a lot of fab to make it work and the final product? Well, let's just say there might be a reason way it's not a common mod.
Sporty's have a lot of various styles but, fixed fairing doesn't appear to be one.
Maybe give one a try and see?