In the archives, there are several posts about a TM owner, a few years back, who made well-engineered and put-together screens for TM doors. That owner no longer produces those screens, and it seems that they are rarely found for sale anywhere.
I think I now have one. Quite unexpectedly, the previous owner of my TM called me to say that he is moving and in the process ran across a screen for the door of the TM, and I could have it if I wanted. The owner before him lived in Oregon and fell into bad health shortly after making his purchase but apparently traveled enough to have an opportunity to make the purchase.
I feel like I just found a Renoir by the curb! Serendipitous, for sure! Can hardly wait for trip destinations (outside of FL) where the almost ever-present heat and humidity make AC essential!