I have quite a large picture window I have recently re-stained due to damage caused by moisture buildup on the inside. I have tried several places to find a storm window that is big enough to cover the whole window and have been unsuccessful. The dimensions are 53 1/2" by 59". All the manufacturers carry close to that but when you get this big they tend to have a seam of some sort down the middle. This would be very unattractive and actually split one of the panes. I have considered fabricating my own out of plexiglass. Any suggestions? Thanks Matt, Atl.,GA