a blind eye

Our basement windows are weird -- 43 inches wide -- and I'm having a hard time finding something perfect to fit. My budget-conscious self wants to try to come up with a solution that won't break the bank like many custom options can (read: I don't want to spend $100+ per window, and I know that might sound unrealistic, but I don't).

I've been researching options for DIY roman shades. Many are no-sew options, like this (pictured right). But then you can't adjust them, and I'm going to want to have the shades open during the day, and closed at night.

I'm intrigued by the idea of jazzing up boring roller blinds, as seen on Design Sponge, but finding the perfect fabric is always a challenge. I want something bold and something simple at the same time. Sewing curtains is, of course, a possibility, too, if the right fabric came along.

Or there's always the possibility of using cheap-o mini blinds, and customizing them into something prettier, like this, but again, I'm not sure I can find them in a 43" width.

Besides defaulting to a custom wood or faux-wood option, do you have any ideas for me?