The small set contains 1 small case, 8 small boxes, 14 medium boxes, 2 medium long boxes, 6 large boxes, and 1 large long box. Outer case measures roughly 6 inches by 7 inches.
The medium set contains 1 medium case, 12 small boxes, 22 medium boxes, 6 medium long boxes, 8 large boxes, 3 large long boxes, and 1 extra large box. Outer case measures roughly 7½ inches by 11 inches.
The large set contains 1 large case, 16 small boxes, 40 medium boxes, 10 medium long boxes, 20 large boxes, 6 large long boxes, and 2 extra large boxes. Outer case measures roughly 12 inches by 14 inches.
If none of these configurations is quite perfect, you can purchase an empty case and fill it with the exact box sizes that you want to use.