For a wine tasting festival that goes noon to 6 PM Saturday and Sunday and gets over 14,000 people on sunny weekends (but many of them likely just taste wines and listen to the bands rather than shop), how much stock do people recommend bringing if you have about 40 images for customers to select from and are letting them pick the color mat wanted for each photo for the photographer to sign and mat on the spot (and the mat color choices are black, dark blue, light blue, green, red, white, cream, wine, and a parchment and gold combo)? There will be one matted sample of each photo that won't be sold so that orders can be taken if stock runs out, and there will be two books with an 8 x 10 of each image for people to flip through in addition to the matted samples. We can do a proportion based on how individual sales have gone to date, but need a guess as to how many photos total are likely to sell. Any ideas? Thanks in advance for any tips you can give.