Since I started the thread, I might as well update with what we have done for this summer. We went with a double layer 87% density sunscreen fabric with a sewn reinforced hem and grommets. I have outdoor hooks similar to teacup hooks that allow hooking the privacy screen up in seconds. Not perfect, since Mrs. J&C can't stand up without letting the neighbors know we are nude (or at least topless) and we are confined to a 12' x 15' deck, but it has allowed us to have a little quiet sunning time on the weekends without having to drive nearly 2 hours to the closest nude resort. If we didn't have our dogs, the 4 hour roundtrip time wouldn't be a big deal. But since we have to get someone to let them out at least once while we are out for a long day, this lets us get some nude time every weekend without constantly asking our friends to check in on the dogs.
I have often pondered something along the lines of your solution so thank you for posting the photos. It's good to see how it worked! For now, I just throw some blankets over my deck railing for privacy and as far as the neighbours are concerned I'm just airing out my blankets.
I like the idea of a solid privacy fence but at the same time that really restricts airflow and the view and ... well ... there are lots of times when a solid fence would just feel a bit caustrophobic - especially at those times of the year when you aren't nude outside. I like the idea of building a fence that maybe has two, or possibly three, solid sides and one that has a removable "curtain" like you have come up with. I'll have to think about this a bit more.
Several years ago, there was a company that sold "privacy" screens and advertised on a few nudist sites but they went out of business. There's another website that sells privacy screens and they might work for some of you that are looking for something portable. May work for some and not for others but it's worth looking into. Here's that link.https://www.suntimeproducts.com/default.html