Looks good! I have actually been toying with the idea of a wooden box 4x5 pinhole cam myself. I would probably use paper negatives in it for WPPD in April this year. Dunno if I'll get far enough or not. I have a B&J Press 4x5 which I made a pinhole lensboard for, and a pile of filmholders, but I'm thinking maybe it's time to increase the percentage of homemade components!