Should I share my sketches or wait a few years til I get around to building?
Ahh to heck with it - you could of course do this in bent PVC - no noise protection if it’s covered in 6ml plastic, but that’s my intention (stretched taut - but you can make it sloppy if you like) - that dust that settles on your car? Your breathing it deep into your lungs where it can do no good.