Can anyone tell me where I might find a 5x7 reducing back for my 8x10 Wisner? I have waited over a year with no back in sight. The order was placed directly with Ron. He must be to busy to make my back. I did check E-Bay with no luck. I need this back for a shoot next month. I thought that a year would be plenty of time to get the back. Obviously I was mistaken so now I will attempt to get a used one. Thanks for any and all help.