So, I've got these short 11x32 inch windows that are original to the house, there's five of them. They're metal, single pane, and have large gaps between the frame and window. I've tried going to the big box stores to have some custom ones made but the smallest size they can make is 12" tall. We really dislike the look of glass block and even then, they aren't optimally sized at 4", 6", 8", or 12". I had bought some plexiglass to glue to the window frame and then I was going to clean them up, paint them and add a bunch weatherstripping. But, I'm doubting that plan now. I should mention that I do care about looks since we are about to finish the basement.
Any ideas? Here's photo of the current windows.