However you hang it, keep in mind that once the sheer fabric falls in front of the back fabric, the sheer will change color. So, let’s say you have pulled back the thermals, but not the sheers. Where the sheers hang over the stacked back thermals will not be the same color as the rest of the window. It doesn’t sound like a big deal until you see it. It is very obvious.

I love my Plantation shutters. They keep rooms cool in the summer and warm in the winter and look fabulous year round.

Anything can be done, it's just a matter of cost. For a job that size, I would try a local makerspace if you have one of those in your city. Hopefully there will be an artisan of some kind who can help you with it. Otherwise, maybe call a hipstery reclaimed furniture store and see if they know of a small business or artist who can make something for you.

vibi, you need to choose one of your two posts. Once done, go in the other and just under where you posted or top right there is a delete button, click that on the post you are not keeping.