The holders on EBAY are so freaking cheap that you can mix and match parts. Keep your eye out for a big lot of wood ones. I bought 15 for 40 bucks and out of those I have 10 perfectly light tight and parts if needed. It's great. I used out of date 5x7 paper and sunlight to check them. That is all you need. I think the old wood ones look better with my old wooden 2d. Modern holders are not really expensive either so the options are wide open.