Belt assembly 101:
Add male snaps to ab plate. Lay canvas belt on torso and feel for the snaps. Mark the spots. Add female snaps to marked spots. Drill a small hole in the middle of the plastic belt Lay the platic belt on canvas centered over the female snaps and through the small hole, mark the position on belt. Make a hole at the marked position of the canvas and insert the male half a cap rivet from behind and through the canvas and plastic belt. Add female half of cap rivet and hammer them together. Make loops for dropboxes from white elastic and rivet them to the backside of inner the dropbox halves (using cap rivets before you glue the belt boxes together). The top of the boxes should not extend far below the plastic belt, but almost touch it. Insert canvas belt through the loops all the way until they stop at the center cap rivet. Repeat step 5, 6 and 7 but with the edges of the belt. You want to mark the holes with the belt laid over the ab plate, not flat on a table. Otherwise it will strech too much when worn.
Add rivet covers Slide belt boxes back to the edge where they should be stopped by the cap rivet on each end. Snap belt to ab plate by sticking your fingers in between plastc and canvas belt and push.
Congrats. You now have an accurately assembled belt.