Its Passover a high holiday for our jewish friends. If you are going to make proofs, then just lay a sheet of print paper under the enlarger, lay your negs on top(emulsion down) and cover with a glass. Have the enlarger set for what should be a normal setting for your normal print size and expose, develope and dry. Thats the simplest way. That will allow you to see what you want to print and not waste a lot of paper unnecessarily. If you dont have an enlarger, thenexpose under a dim bulb a couple of feet above your proofer.

Rick