I used a board-mounted box pleated valance on the box bay in my dining room. I screwed the board right into the soffit above the window. The way mine was framed, there wasn't enough room to hang a rod high enough to cover the top of the window trim. I made long panels of the same fabric for my living room windows. I used honeycomb shades on all the windows (not room darkening, but I did consider them). Most of the time I leave them up, but we don't have a guest room and the sleep sofa is in the living room, so privacy is an issue when we have overnight guests. Totally Confused

There's no other way to arrange the furniture? If you post a floor plan (hand drawn is ok) showing measurements of furniture, walls, window width and doors, maybe there is another solution. But if you don't want to do that, I'd just get some nice looking shades of your choice (bamboo or roman) and not worry at all about covering them with draperies. Depending on the size of your window, you might have to outside mount (better for light control, I think), because to inside mount might require a custom size.

I don't have any yet-- it's in design phase. We've decided on fabric covered vertical blinds with an angled top. Seems to have the fewest constraints, most options, and reasonable cost.

You have such a nice view I can see why you would want to retain it during the day. I'd mount one rod from wall to wall, and use drapery panels. One panel on each end and wider panels in the middle around the sliders so you can pull them closed. Use a lightweight lined fabric so you can get teh fullness you need without taking up too much space. Don't use shutters. They block a LOT of light even when open, and you would never have a clear view outdoors.