Before we went to Expo, I looked at getting some bug screens. Not because we have a lot of bugs here, but because when we go other places, there can be a lot of bugs. Especially fishing spots. I love caddis, mayflies, and especially stone flies, but only when I'm fishing. Anyway, then I looked at the prices - OUCH!
So I made some.
The front window screens are pillowcase style and have magnets along the bottom to keep them tight.
The slider has zippers on each side and a magnetic closure in the middle. I think I will remove the front zipper and put magnets there as well. But that's a project for another day.
The rear has 3 zippers, one on each side and one in the middle.
Got webbing, velcro, sash weights, and polypro webbing from Amazon, bulk YKK zippers from Sailrite, and magnets and no-see-um screen from Home Depot. All in I've got about $200 in it, with a lot of leftover materials. And about a million labor hours.