I have a wooden frame fixed picture window with single pane glass and an outside single pane glass storm window. As you would expect, moisture gets trapped between the windows. I would like to eliminate the storm window and have double or triple pane glass installed on the fixed window. Ideally, I would like to use the same wood frame or if not feasible have a custom frame and window built. The window size is 43w x47h. I don’t want to replace the window sashes, just the window itself.