Yes, I was tossing about for ideas for this. The original is all draped over the driver passenger chairs when they are turned around, like you said. I wanted to stick up new Velcro buttons and just rehang the curtain further back. But, I don't want to look at those extra Velcro spots when we're driving. Plus, I kinda hate that curtain fabric. That is some weird feeling fabric, I can't stand to touch it. So I measured for making a new curtain that fit better and liked better and trying to think of different way to hang it.
Anyway to make a short story long, after we made Reflectix covers for the cab, that seems good enough for right now and I stored that curtain for resale.
The problem with outdoor covers is going outside in your jammies when you wake up and want to have coffee and gaze outside, at the woods, hopefully. I did get an unusually long hoodie at Costco that I use for a RV bathrobe, it's not heavy like a coat. In my mind, you can't tell I'm really wearing my bathrobe.