I am planning to build an HO scale model of my house to place on my (still in the planning stages) layout. I am planning to build the house using wood board & batten siding. If I take a Pikestuff window from one of their kits and turn it sideways, than the height is right, but the window would be way too wide. Would it be fairly easy to modify these windows to get the right width, or will that end up too messy? I suppose I can always practice on one to see if it will work or not. To get to my real question, what different companies sell windows for scratchbuilding?