On e-bay, I have found lenses in shutters available from $25.00 and up. Makers from Baush&lomb to Zeiss. If you are not familiar with these lenses, here are a few... B&L Tessar, Schneider Xenar, Wollensak Velostigmat, Wollensak Raptar, Kodak Ektar, Ilex Paragon, and others. These lenses are all common for press type cameras. There is a much larger supply than demand (for now)