Keep in mind, Kathy, that you and Ursula have a completely different sort of room, at least for the most part. I don't dare mention the word "Greenhouse" to my wife.
She would have a hissy-fit if she even thought that was the primary purpose of this 18'x32' room. She wants to live in that room year' round and she's already asking: "where will the TV be mounted?" She knows and accepts that one side (the right-hand side) will have two large benches for plant-work and she knows there will be tropical plants in the space, but the majority of the space is hers, to do with as she wants. Heck, we are even replacing the middle ceiling fan with a chandelier and she has plans for a smallish, wood dining table under that light!
I am sure that there are other "surprises" that await me.
The only thing on the tiled floor will be that 32' long Hubbell trench drain with decorative grate. We sit on a concrete slab, so there are no floor-registers.
Too late about the windows. They are sitting on my driveway.