BTW the hyperfocal distance for an image circle of 156mm is 1.27m (1.39 yard). If you focus on 2m (2.19 yard) stopped down to f22 you'll have everything in focus from one Meter to infinity. So you can build a fixfocus camera and won't need tilt capability. You will need to stop down at least to f22 to get a sufficient image circle for 4x5. There is no margin left for shift. So for 4x5 a simple light tight box with a grafloc back will do.