you will be able to see clearly how to line up the hole with the punch. punch all six holes. it is fine to punch through both sides of the card.
in this version, all three dials are identical, so there is no need to keep them separate. just be sure they are facing so they show through the holes. i used a pen to poke the holes in the body and the wheels to help the brad go through the very center. this is a good way to help everything to line up.
the wheels will overlap each other, but they should fit just fine.
the flaps kind of help hold things 